Based on my Dynasty Warriors Gundam 3 gaming experience:
1. RX-0 Unicorn Gundam (Destroy mode) -> this dude moves and kills enemies real fast.
2. GX-9901-DX Gundam Double X -> this dude clears enemy fields quickly (aerial musou)
3. XXXG-00W0 Wing Gundam Zero -> I cleared DWG2 using this. It does DWG3 quite nice
4. MSZ-010 ΖΖ Gundam -> Ever since I watched the ZZ anime, I liked it.
5. Musha Gundams -> Badass pilotless, sentient monsters. They're strong too.
I know it's over 5, but i really love these ones Sazabi got me really into gundam, Crossbone's my first MG, Verde Buster's my first fully color, sticker, ETC HG, F91 for all gundam games, Banshee's fucking cool, Wing Zero's fucking beautiful... so i really can't decide much
[color=blue]5. GN-0000 00 Gundam: The anime's plot may have shit itself inside out, but for as long as it was good; the 00 was an awesome Gundam.
4. MS-07B Gouf: Because this is no Zaku boy. NO ZAKU.
3. SYSTEM ∀-99 ∀ Gundam: Gym Ghingham, was cool. But Loran was just way more genuine.
2. F91 Gundam F91: I played Dynasty Warriors: Gundam 3 and fell in love with it. 1. RX-93 ν Nu Gundam. There's no one that compares.[/color]