I never really played all of the R&C and Jaks until not too long ago (beat R&C 1, and Jak 3) and I must say, that I think Insomniac is better. Although I think it's only recent, because of Insomniac's ridiculous yearly game release, before I would say ND because Crash is awesome, got it for my PS3 :).

I really can't decide. Both of their games are always fantastic. But I guess after Uncharted, I'd have to say Naughty Dog.

I'm going with Insomniac based on their most recent games. Aside from the new PSN game, insomniac have released to AAA games this gen VS the one AA game from Naughty Dog (Uncharted).

But I think Crash > Spyro though

isomniac hands down

for this generation at least

Naughty Dog

Hmm... this is a tough choice, neither company has really bombed a game since the 3d era. I'd have to go with NaughtyDog by a slim margin, though this could change if R2 is worth the hype.

for me
crash>spyro
jak>ratchet

i have played ratchet futures and loved it, im playing resistance and loving it, but i havent played uncharted.

for me before this generation would have been nd, but with more releases from insomniac i might have to change my mind.

but, since jak 2 and 3 are my top two games from both of them, i still have to go with nd.

Naughty Dog.

Naughty Dog

The Jack series alone is enough of a reason for me to pick them. Inzomniac has great games aswell, but Jak is just a major plus for me, Uncharted is a nice little bonus.

Naughty Dog Had Crash back in the 5th gen...One of my favorite games as a child...