If you really want to portray yourself as the Admiral, choose the ship from which your character could best command a fleet - but feel free to take a little artistic license.
Good example - during the Falklands conflict, the British Admiral commanded from the 30 year old carrier Hermes instead of the brand new carrier Invincible. Why? Hermes was a tried and tested ship, with the space for an Admirals command staff and the necessary communications systems. By comparison, Invincible was a brand new ship with virtually no operational experience and no specific space set aside for an Admirals staff - in other words, it was newer and technically more capable but in reality Hermes was the better bet as a reliable flagship.
Before the fleet even reached the Falklands the point proved true - Hermes went the full campaign without an issue (despite her engineers literally taking bets on when the old girls boilers would give out), Invincible had a major defect in the first week.
If you're looking purely at the RP aspect, think along those lines. There's room for you to choose an Excelsior over a Galaxy, or a Nebula over a Sovereign... but a Defiant R is probably pushing it. It simply doesn't offer the space for an Admiral and his staff.
That really doesn't matter. Flagship is a fake title, anyway. It was made up for TNG, and only useful there because those characters were the stars of TNG. No one ever cared if Kirk's Enterprise was the flagship. People respected Kirk and his crew not the ship. Kirk did more in an outdated BoP then most Starfleet captains do in Galaxy Class ships: Captain Keogh wasn't exactly the sharpest knife in there drawer in the Odyssey.
Well it was wrong in the sense that in the real world there is no permanent flagship. Like how ever ship that carried the name Enterprise was the flagship of the fleet. It usually is just the ship that the highest ranking admiral is flying his flag on. And I disagree about people not caring about the ship. In the Star terk verse, the name Enterprise has always been associated not just with her command crew but with the fact that she's the ship that takes on the hardest missions, and gets the more interesting assignments. The fact that you are working with one of the best crew's in the fleet is just icing on the cake. Thats what would draw so many people to try and get a transfer on to that ship.
Well it was wrong in the sense that in the real world there is no permanent flagship. Like how ever ship that carried the name Enterprise was the flagship of the fleet. It usually is just the ship that the highest ranking admiral is flying his flag on.
The Enterprise wasn't always the Flagship of the fleet. As I said above, that didn't come about until TNG decided to start using the term. In the TOS era several Commodores could override any decisions Kirk made even though he was on the Enterprise.
And I disagree about people not caring about the ship. In the Star terk verse, the name Enterprise has always been associated not just with her command crew but with the fact that she's the ship that takes on the hardest missions, and gets the more interesting assignments. The fact that you are working with one of the best crew's in the fleet is just icing on the cake. Thats what would draw so many people to try and get a transfer on to that ship.
Not exactly. The Enterprise in the TNG era was designated a Flagship. It was given the best captain and he got his pick of whatever crew he wanted. This was then carried over to the Enterprise series, but what made the NX special wasn't that she was a Flagship, or that Archer was the best captain in the fleet. Her specialty was that she was the first warp 5 ship. Archer was captain because he spent his life working on his father's dream of warp 5 ships.
I understand the need to idolize the Enterprise but Voyager and DS9 did quite well without an Enterprise ship in their series. Any ship can be a Flagship in this game and when I finally get there I'm sure my Admiral won't be taking orders from any Captain on the Enterprise F just because it's a Flagship.
The flagship was a symbol of the best of the Federation. It was a political move as much as a technical or military one. I think Picard himself commented on the statement that the Federation flagship is one of exploration not a warship. The NX Enterprise was the flagship because at the time it was the only Warp 5 ship but also it symbolized the mission of Earth, the dedication to exploration and sent a mission of independence to the Vulcans as well. That they didn't need hand holding anymore.
It's debatable that the Enterprise "gets the best crew" at all. Certainly we're biased because it's a TV show, but i would guess that other ships and their captains would argue quite vehemently about the crews. Certainly Voyager and DS9 are great crews but they were not the flagship. The Enterprise-D would still have been around.
And i've never seen any of the Star Trek series captains ordering around Admirals...
In WW2, many admirals typically used smaller and faster ships, and today it might be the ship with the best communications suite.. IIRC some navies actually have command&control ships today (that definately are smaller than say a CVN).
I believe that that is part of the mission for the Wasp-class Amphibious Assault Ships.
As for the Enterprise being the flagship, I have always thought of it as such that it is considered the Flagship of the Federation in a symbolic sense, representing the best the Federation has to offer. As for being the strategic/tactical/etc. flagship of the fleet, probably not.
Martok had the Rotarren as his flagship, a tiny B'rel class bird of prey. The flagship is just the ship of the Flag officer of the fleet whether that be a huge cruiser or carrier, or a tiny shuttle. as for a flagship feel, what do you want in a flagship, firepower, armor, size, aesthetics?