I've seen a bit of Gundam Seed and Wing. Wing I frankly found a bit boring. There was this cool dude who survived a no-parachute drop from the 50th floor (and a cliff!). He was awesome but the rest I found disappointing. And the story didn't quite have it for me. My other favourite character there was the guy with the braided hair and the scythe using gundam. Least favourite. The girl.
Seed wasn't quite my thing either. Kira and Asran annoyed the heck out of me. Like gosh, can't they ever bring up different arguments after their half a dozen duels? And the battleship was too damn invincible. I did like the blond pilot fella though.
I've seen quite a bit of Super Robot wars (both Divine wars and the OVA. I preferred Divine wars, the OVA was too much 'watch Kyosuke kick behind in his invulnerable Alt-Eisen Riese). I hope I come across the last five episodes someday. I want to see SRX!
Other than that, I've been following Gundam Seed Destiny for a while. I absolutely hate Shinn (red-eyed Asran, only ten times as annoying.)
I also hate (in no order of preference)
The military girl with the pink skirt. Geez, what's with the constant Asran chasing?
The fake Lacus with the awfull dress that looks like it should fall down her legs whenever she breathes. She's like, another Asran nut and just plain annoying. By the way, is Asran a girl magnet or something?
Cagalli. Ok, you run onto a battlefield and think that everyone will just drop their guns and have a picnic together just because you order them? Geez, if Kira wasn't around to shoot down a missile swarm you would be swiss cheese by now.
The first officer. You look nice, but you should try to say something else than: ,,What?!" Talk about a limited vocabulary.
That said, I do happen to like Kira more now. Sure, he takes out all the tension but it is just cool to see some guy go uber and take out like 30+ grunts in less than a minute without killing anyone, just chopping and shooting off limbs everywhere. Also, Freedom has way too many guns.

So let's go with another list. Cool dudes this time. Sorry, but I haven't come across a cool female yet. Though Lacus is nice. Probably the only one who doesn't shout and scream and chase guys all the time. If everyone was so calm, the world would be a better place. Ok, the list.
Masked dude: Dang man, that's a cool mask. Too bad you exchanged your badass fighter for a repainted grunt mech. You rocked in that thing.
The scarred fella with one eye. He's got a prostethic arm with a gun mounted inside!
Wow, short list. Ok, another one. Cool mecha!
Freedom: I dig those guns man.
Zakus: They're cool, but their pilots suck.
The grunt mechs that constantly attack the Minerva: They look like a cheap gundam. But their pilots should really learn that flying in formation in a straight line is not how you should fly on a battlefield. Even Shinn can take them down like flies.
Saviour: Pretty cool, but Asran can't bring out the best of it. Also, it got chopped up by Freedom. The lesson? Don't mess with Freedom.
Gaia: Out of the stolen ones, this is the coolest. Too bad it can't fly and is piloted by a split personality lunatic.
The fighter the masked dude uses in the first few episodes: Detachable gunpods, yeah baby!
Impulse: You're quite cool but you're piloted by the most annoying dude ever (Shinn). Also, can Shinn pull of a single launch without his stupid barrel roll? Even when he was ferrying a dying person (Gaia's lunatic), he had to do a few barrel rolls first! Idiot!
Archangel: A sub, a spaceship and Freedom's carrier? Nice.
Minerva: Cool guns, but I don't like the launch deck for Impulse and the stupid 'bridge on an elevator'. I mean, I know that you want to be able to move your bridge away from those huge windows and into a more secured position, but you shouldn't have windows in the first place. Also, how secured is your secured position if even there you have windows? I mean, do you like it to have an enemy hover and point a gun at the ship, effectively taking your whole warship hostage? (Which reminds me, why do those cool guns stop firing all of a sudden when the hostage situation occurs?)