Back in 1995 Creative released 3DO BLASTER, 3D0-based chipset that enabled you to play 3D0 games on PC. Keep in mind this was before Windows 95/98, and I've always wondered how it worked.

Alien Breed: Tower Assault, Super Stardust and Banshee were great! Sadly its full potential was never realized.

It shared many of its games with the CDTV from 1990 which was mainly based on 1985 Amiga technology, but games like Lemmings and Defender of the Crown were great:

CDTV Defender of the Crown 2:

http://www.youtube.com/watch?v=Af0vFi4sSzw (RIP onto harddrive lacking some music)

CD32 Banshee:

http://www.youtube.com/watch?v=yoWuYp-vs6c

Super Stardust:

http://www.youtube.com/watch?v=tHkMdtJtSYk (diskette based version lacking some audio and cinematics)

Best homeland produced CD32 game (yes some good games were made in Holland before Killzone as well )

CD32 Disposable Hero:

http://www.youtube.com/watch?v=-b-p2ka9mwA (sadly the same as the diskette based Amiga 500 version, but still great!)

For a second I thought it was a proper Disposable Hero sequel. IIRC Disposable Hero ran on a stock Amiga with 512KB RAM expansion...

Jaguar had better top games. (AvP, Tempest 2000, Iron Soldier) after those almost everything sucked. The Jaguar controller was pretty horrible too.

I own a Jaguar with:

Tempest 2000
Rayman
Doom
Alien vs Predator
Iron Soldier

I loved every one of these games! I could never finish as the soldier in AvP without an invincibility code! I wish it was remade for Wii! I never got the CD add-on.

And the "is it really 64bit" debate can be explained easily, the Jag is a multi-processor system much like the Saturn. It has a 16bit motorola main processor with 32bit audio dsp and 64bit graphic processors all sharing a 64bit wide system bus.

i owned both systems and the "3do" won this hands down.

I always had an odd thing for Cybermorph and Battlemorph, though i am at a loss, looking (and playing) them now for what it was I liked. (Probably the same thing I saw in Toshinden at the time: the sparkly, for the era,  3D graphics made me temporarily take leave of my senses.)

But Tempest 2K, to this day, is one of my all-time favs and, thus, puts the Jaguar over the 3DO for that fact alone. (AVP was also pretty amazing, in its day, albeit playing as the Predator and seeing the marines hanging out with face huggers like they were BFF and the like really ruined that part of the game for me.)

(Yes, Star Control II was/is amazing, but it's also available on PC/PS/SS along with most of the rest of 3DO's best...hmm, this sounds oddly familiar for some reason...)

This isn't even much of a debate. The 3DO had a much stronger and larger library. The Jaguar was cheaper but the library was lame and small. If the Jaguar was a CD based console from the get go it may have got more 3rd party support.

Software selection wise, definitely the 3DO.
Hardware capability wise, definitely the Jaguar.

Really reminds me of 360->3DO; PS3->Jaguar.

Please don't murder me for that thought.

That's a real big stretch, but nice try.