Define better. They're quite a bit different. The GC is an older platform, it's issues are very, VERY well documented, and most of them out there are V6's. That being said, the GC is arguably Jeeps's best vehicle (the jury is still out on the Wagoneer and Grand Wagoneer). The Atlas had some early teething issues, and it's a VW, so expect the check engine light to appear at LEAST once while it's under warranty -- any VW owner who says they didn't have a CEL at least once during the warranty period is being less than honest. That being said, the Atlas is arguably nicer on the inside than the GC (as it should be, it's newer), but it's not as suited as going off road as the GC is. Size wise, the Atlas is a little bigger, but the GC has an absolutely HUGE gas tank for the size vehicle that it is, and it has a ton of range if you go on a lot of long trips with your car. Ultimately, it comes down to what you want out of the vehicle, and ultimately, how the dealership experience is for you. YMMV -- Chrysler and VW dealerships can be hit or miss (this ESPECIALLY applies to Chrysler/Dodge/Jeep/Ram dealers) with regards to warranty. (i.e a tech at the Chrysler/Jeep/Dodge/Ram dealer had to change the oil cooler/oil filter housing on a GC, and the vehicle was under warranty; the warranty covered the labor and the part itself, but wouldn't cover flushing the cooling system and the engine even though the fluids mixed because of the failed part; ridiculous)
There's a reason why there's a massive shortage of technicians, that's just one reason why
Edit: For the GC or the Atlas, get a warranty that covers as much as possible, and if you can find out if the warranty company pays customer pay rates to the dealership, your car is more likely to get fixed properly; because the technician that's fixing your car is being fairly compensated for the work he's doing, instead of working for free (which happens more often than you think; there's a reason most techs do NOT want to talk to customers)
