I've owned a Taurus PT1911 AR for about 1 1/2 years now with roughly 1000rds through it with zero malfunctions. It's got a great trigger and is pretty darn accurate. It's my go to pistol, out of all the ones I own... it's that good to me.
I've also had the RIA 1911 on my radar, been impressed with it too. So, I guess it's which one is cheaper.
I haven't had the issues with Taurus that some have had, I've never had one of their pistols break on me... so haven't had to contact the factory... I suppose the ones I have are the good ones.