I really like the paint job on the Tactical Squads. Then again I tend to look at Troops first.
The Dreadnought looks nice as well.
My army is basically a swarm of more infantry then you can kill.
You're not supposed to like the Troops units the most, those are the ones I spend the LEAST amount of time painting. :p
But my Dreadnought was the one I spent the MOST time on, so I'm glad you noticed him.
Oh, believe you me. Between my bolters, heavy bolters, missile launchers, storm bolters, and assault cannons, I can kill quite a bit of infantry.
In fact, my army's leaning a little too heavily towards anti-infantry at the moment, which is why I got the Land Speeders with multi-meltas and the Predator Annihilator.
If you didn't guess already, I like assault cannons. Assault cannon on a Terminator, assault cannon on the Dreadnought, assault cannons on the Land Speeders, and twin-link assault cannon when I get my Land Raider Crusader.