I've used several including Philbeck. He's a nice guy, and his kids are Aggies, but I think there are better options for the price.
On the less expensive end, this guy is hard to beat and he'll be in Midland in a couple of weeks
http://www.garytailor.com/catalog/TourSchedule.php. Gary Tailor clothes are made in Hong Kong and run about 1/2 the price of Tom James or John Philbeck. He will tell you 6-8 weeks for delivery but I've ordered clothes from him 6 or 8 times and the longest it's ever taken is 6 weeks. It's typically 2-3 weeks. He likes to size his clothes a little looser than I like, so I'll wear something that fits like I prefer or tell him what I'd like him to change about the last clothes he made for me. Returns are tough since shipping to Hong Kong isn't cheap, but if he screws something up, he'll make it right.
I've used a Tom James rep from Lubbock (he's in Midland a couple of days per week) and I prefer his fit the best, but he is the slowest at delivering. I'd say 2 months out on average. They have 5 different price points and I typically buy the 2nd cheapest or middle price point items. These run about $250/shirt $500-$600 for pants and $700-$1000 for jackets. A little cheaper than what I bought from Philbeck, but quite a bit higher than Gary Tailor.
I've tried J. Hillburn once beacause I was given a gift card. Their pants fit me great, but the shirt I got was too fitted. They basically ask you how you like your clothes to fit from +3" to +8". +3" is like a Robin Thicke costume. +8" is more like Ron White. I think I went with +5" and really like the pants. I'd probably go +6" on the shirt next time. I think their prices are a little higher than Gary Tailor.
For me, Brooks Brothers is hard to beat for pants on price and fit. They have a few different fits and hem to length. I can get pants there that fit 95% as good as my best fitting custom pants for 1/2 the price of tailored pants. I prefer tailored shirts and coats though.
