I'm not on the fence. I will be getting the PS4 version.
I don't have a computer powerful enough, I'm a moron with tech stuff/upgrades and my daughter is now off the age where her computer time rules. (Why did God give women the ability to talk, text, email with the greatest of ease?? Being the only set of balls in the house, it gets nutty and loud)
I don't think I'll be disappointed with the PS4 version. Plus, whenever GT7 drops, I'll be ready for it.
The only downside to the PS4 is I lose some friends (and I have lost some) to the PC world.