1) Amura. He was the first. He is the best. He can kick any Gundam series' main pilot blindfolded. Actually, blindfolded might be too easy. We'll go with 'both hands tied behind his back' 'cause that actually makes it difficult
2) Nu and Strike Freedom. What makes Amura kick more butt? Givin' him a mobile suit that only amplifies his powers, of course
3) Funnels. The best defense is a good offense, and a good Funnel system covers both
4) The Original! Nothing can beat Amura and the White Base
Honestly. Gundam Wing is another overrated series =/ The character sheilds are
way too obvious. "Oh look! -insert random plot character here- just destroyed that -insert unimportant cast #??? here- just by looking at him O_o ! Wait! Is that legal?!" SEED was good. I heard SEED Destiny was a disappointment. 0087 was an interesting one. SD was a joke. I could go on, but I'm not quite as up on series's name as I might be >_< There are just too many, and I've seen a truckload @_@