I think 4th gen was leaps and bounds better than 5th gen. I imagine most people will vote based on their age and what they grew up with.

5th, N64 and PS1 together was just too strong.

Banjo, Spyro, MK64, Super Mario 64, FFVII-FFIX, C&C on consoles, Twisted Metal, Digimon World, Gran Turismo, Tekken 2, Zelda OoT, SSB, Goldeneye, Conker

Many genre defining games that I could still enjoy today.

Most 5th gen games have not aged well; controls, camera, and framerate are often very awkward.
The 4th gen, by comparison, holds up better.

i have way more games I love from the 5th gen.

Actually I think it was sixth gen that nailed in the coffin, for ex. soul calibur for dreamcast, internet which arcades really didn't have.

In my opinion:
N64>PS1>SNES>Genesis>Saturn>Turbo

4th

They obviously hold up well enough to become my favourite games of all time, playing them 15 years after they released.

Fifth generation. Was blown away when i first saw 3D graphics in a mario game.

I have to say fifth gen, but fourth gen had some great stuff too.

Particularly I was quite fond of
Xenogears
Legend of Mana
ff7-9
Resident Evil
Vagrant story
FF tactics