Full disclosure: I'm biased towards the 2008 TXT PDS because I have one.
If you plan on doing your own maintenance, check out the stickies in both the Electric EZGO and Electric Club Car forums here.
You can find the Owner, Service and Parts manuals for the EZGO, plus other info needed to repair an EZGO, but next to nothing for a Club Car.
Personally, I believe the EZGO is easier to troubleshoot and repair because it is a less complex design, which also gives you a wider set of choices when upgrading.
If you don't plan to DIY, both will fit on the same sized trailers when you have to haul them in to your local cart shop.