I went both. I got the Saturn first, followed by the N64, and the PS1. All three consoles had their moments but the N64 was easily my favourite.

N64. Greatness. I never had a PS1 until about a year or so ago. I've been slowly playing through a lot of the games I missed. I didn't need a PS1 when I was younger. I just went to my friend's house to play, and play at mine when we wanted to use the N64.

I had all 3 consoles eventually but N64 first, Mario 64 literally blew me away, the same day I played it in the store for the 1st time I practically forced my parents to buy it.

I went N64.

I had been in college and largely broke during the SNES days, so I missed an entire generation of gaming (thanks Virtual Console!), but I had an NES so I was a bit predisposed to Nintendo anyway.

When the N64 was preparing for launch, the PS1 had a pretty shitty catalogue (big, but shitty) and I hated the controller, so I wasn't really interested. As a SF nerd, I was wowed by what I saw of Shadows of the Empire (the Hoth level) at conventions, and the Mario 64 kiosks at TRU had me hooked.

I eventually got the N64 after the XMas launch (waited until after the holidays as I figured there was a better chance of it going to a kid then- this was before eBay drove the speculator market into overdrive) along with SM64 and SoE, and never regretted it (thankfully SoE was the first game I played, so I was too wowed by the "2 gens ahead of where I left off" factor, and didn't notice how shitty it could be - esp the controls - until I had a few more games under my belt).

I was just out of college, had no significant other, and a job, so I had money and time to spare. I was able to play games to death in a way I am no longer able. I can't say I completed all of them (like many of the platinum medals from Blast Corps), but I was pretty thorough, and to this day many of the N64s games remain among my fondest memories. Most notably:

Banjo Kazooie
Mario 64
GoldenEye
Perfect Dark
Blast Corps
Mario Kart 64
Diddy Kong Racing
Wave Race
1080
Snowboard Kids (deceptively fun title)
Turok 1 and 2
All Star Baseball
WWF Raw
Doom 64
Duke Nukem 64
Conker

 EDIT: $^&! How could I forget Ocarina!

i had both
first n64
then ps1

both it was just the way to go...

nintendo 64 of course, never regretted my decision, even to this day.

N64, it had all the best games. OoT, Goldeneye, Super Mario 64, Mario Tennis, and Mario Kart 64.

ps1 because of tekken. besides, n64 games were very hard to come by where i lived.

Both at launch, but while N64 was a decent (not great) console, PS1 was pathetic except for Symphony of the Night.