Even though I don't lose a lot of balls, I like the Maxfli Tour balls for a bargain "tour" ball. They always seem to be available at 2 for $55 and the $10 DSG credits are easy to come by. I like some of the other big name tour balls a bit better, but not enough to justify the price....and when I play a ProV it doesn't seem to help my score.
I definitely want a urethane cover on my ball. I did really like the Kirkland 4-piece ball, but found the original 3-piece to be short hitting. I haven't tried the latest Kirkland ball yet, but I hear it is better and the price is certainly good. I like Snell also, but they weren't always available this year.