There should be "stats" changes shown for all items, consoles, sheilds, engines, deflectors and your the use of crewmembers.
I have asked that this be put forth in many, many "bug reports".
Other RPG's all used this in the past. Even Diablo of 10 years past showed better result of changes to equipment than STO does today.
When adding all the equipment you should see the "positives" and "negatives" of addind/removing all items.
I support the concept listed in this thread but I'd like to take it a step further. I want more customization in my HUD. I'd like to be able to expand my Power Tray, add Other trays, Rotate my power tray. I'd like to be able to put up displays of key numbers like Damage Resistance, Defense, Shield Regen, Movement Speed, etc on my tray. I'd like to be able to resize elements of my tray. I'd like to be able to refont elements of my Trays (and not just chat).
When City of Heroes added these kinds of features I just became hooked, and have always wanted it since. Any further customization we can get the better. As it stands, I would say about half of my Vice Admirals or Lt. Generals can not fit all their abilities properly in the Power Trays as they exist now. I realize this is an expansion on what is mentioned but I feel it is relevant. I love the ideas presented and always like transparency in how the game is working.