Okay, here's my list, but I haven't seen all the series either
MSG: Gelgoooooooooooooog!
0080: GM Sniper II, only there for a second before it's blown to hell, but it's a beautiful suit
08th MS Team: Gouf Custom, just a sleeker Gouf, excellent
0083: GP01 was cool, land form though
Zeta: Gundam Mk. II Titans colors, you just can't go wrong with midnight blue, ever
haven't seen ZZ, but the Zeta Zaku looks great
Char's CA: I'd say the Nu Gundam, but I can't get enough of the Jegan, man that thing is just great