Thanks to everyone for the input and recommendations! I've narrowed my choices down to the following tires:
Goodyear Eagle RSA ($67 a tire)
Goodyear Assurance ComfortTred ($92 a tire)
Goodyear Assurance TripleTred ($107 a tire)
I'm leaning toward the ComforTreds due to their reported ability to deliver an exceptionally comfortable ride (think: highway cruiser) and their good marks on how they perform in the rain. Plus, they're supposed to wear very well and last up to 80,000 miles. I doubt I'll get that much out of them, but I'd be happy if I could get 50 or 60 thousand miles from them.
The RSAs still have my eye due to the lower price and generally predictable performance. (I've probably driven 500,000 miles on Goodyear Eagle RSAs on police cars over the past 13 years so I'm familiar with them.)
I don't need any winter performance whatsoever - it never snows in Houston - so I'm not sure I want to pay the premium for the TripleTreds, especially since some people have reported a noisier and harsher ride with them.
I decided to go with Goodyear tires and abandon the others for a few reasons.
1 - I get a discount on them due to a contract price I'm able to get.
2 - They have a rebate going on right now which will save me $20 to $40 on the tires. Not much, but better than nothing.
3 - By charging it to my Goodyear credit card I will get no interest for 90 days (minor benefit, but convenient nonetheless).
4 - I like the fact that they offer a 30-day "test drive" on their tires. I don't really have any belief that I'll exercise this option, but it's nice to know it's there.
5 - Through the course of my employment (helping stranded motorists) I've developed a working relationship with the guys at most of the local tire shops. And while I think Goodyear's Gemini car care rips people off for everyday services (oil changes, etc.), I feel comfortable with their ability to properly mount and balance the tires, etc. (I'm not feeling the same for Walmart or Sam's Club, know what I mean?)
I used to dislike most Goodyear tires, but lately I've come to think more highly of them. The Goodyears on my wife's Yukon XL have performed flawlessly (they were just put on it by the previous owner before we bought it). The Goodyear Eagle RSAs on my 2000 Crown Vic Police Interceptor have worked very well for me, so I can't really complain. My buddy just got 42,000 miles on a set of Goodyear Eagle RSAs on his 2003 Impala Police Package, and I don't think he rotated them more than once!