You want a list, you say? Well, since you asked for it...
Truly Cool:
Bone Gnawers - Lissen here, pup, an' I'll tell ya why we Bone Gnawers are cool. We got that whole grunge thing going fer us, ya know, and plus we really know the humans. Heh, yeh can say we know them better than they know themselves. Oh yeh, and we can totally kick ass. But all werewolves can, right? I guess. What? You want more reasons? How 'bout having Rat as a totem, making us close to the Ratkin? That do anything for ya? Ha, I can tell by that goofy grin on yer dumb face that ya like us already, so get outta here, I told ya what ya wanted. Now yer startin' to get annoyin', scram.
Silent Striders - Angels of Death? Nnnot really, but cool anyway. Looking like werejackals is always a plus. Being the wise travellers of the werewolves is always fun. Kinda like Gandalf... or the Sphinx. But cooler, definitely. Why? Sure you can face a Balrog and cut guns in half with your mind, but can you shred apart tanks in a nine-foot Crinos battle form? I thought not. Silent Striders rule!
Red Talons - Lupus Garou are definitely the coolest, and if you agree with me you've already got one paw in the Red Talon camp. These guys have got their acts figured out, and if you ask me, they're the REAL Garou. Forget trying to pal up to humans or having high ideals about serving Gaia by being all enlightened and stuff; just go out and get your paws wet in the real world. And get your claws wet too, if you know what I mean.
SortaCool:
Fianna - Ian Anderson would be proud to be a Fianna Garou. Ian Anderson is inherently cool. Therefore so are the Fianna. But seriously, can you imagine being a Fianna who wasn't a Galliard? Suddenly they don't look so one-sided, do they?
Get of Fenris - Kicking ass some of the time is what Werewolf is all about. Kicking a ton of ass all the time is even better, and if you're on of these bad boys (or girls), you've got that going for you already. Unfortunately I'm afraid that these guys tend to attract a lot of shitty roleplayers... but if you knw what you're doing, your Fenrir will be one cool wolf.
Uktena - These guys are pretty cool, but I just thought I'd mention that you should be careful when naming them. Indian names are fun, but try to avoid making something that sounds stupid. On a similar note, no Danny, there isn't an Uktena out there called Humps-Like-Rabbit. Meanwhile, these guys are really neat if you don't go all stereotypical on them. Keep in mind that they're werewolves first and they'll totally kick ass.
Wendigo - Remember how I said back on the Vampire Clans page that it's fun to say Nosferatu? C'mon, you saw this coming. Wendigo have the coolest name of any Werewolf tribe. Oh, and these guys totally kick ass too. Noticing a trend? Okay, I'll keep going. These guys totally have their own philosophy, and that happens to be a totally werewolf philosophy: think for yourself. Seriously, that's what it seems to boil down to. And once you're done thinking, go out and kick ass. Or better yet, think WHILE kicking ass. But don't forget to pay attention to the ass-kicking first.
Not Cool: aka The Rest
Black Furies - I gotta admit I don't really know much about these chicks, and I'm not likely to either since the idea of any tribe having only chicks sounds kinda weird to me. I mean, yea logically you can have a clan that's all Lupus, but all women? A tribe? Think of the word here, people.
Children of Gaia - Usually hippies are cool, but these guys seem like some of the most boring hippies I've ever seen. Want to know what Gaia wants your pack to do? Don't bother toting one of these guys around for their advice on that subject-just bring along a Fenrir, Red Talon or Wendigo and you're set.
Glass Walkers - Do ANY other tribes like these guys? No? Well here's the reason: if I want to play Werewolf, I don't want to be a city-crawler. The Leeches are bad enough without becoming entranced with the Weaver's webs...
Shadow Lords - Um... aren't these guys kinda like the Werewolf version of the Sabbat? Or at least the Giovanni or Children of Set... meaning: they ain't cool, man! Can you imagine trying to play one of these guys? Jeez, let's move on...
Silver Fangs - Okay, these guys are at least cooler than the Ventrue, their Vampire versions, but they're still rather weak, especially when compared to the better tribes.
Stargazers - My almost total ignorance on the subject prohibits me from commenting. Okay, I'll comment just a little bit: take a Silent Strider instead. They're cooler.
There ya go, and before you say anything, you're welcome.