How much torque do you want?
I've been making do with TowerPro MG946R's, which only put out 208oz of torque at 6.2V. I have a comp this weekend and that's not going to cut it, so I just ordered a beef servo on Sunday. I have no previous brand loyalty but have heard nothing but awesomeness about Hitec.So I just bought a Hitec Monster Torque HS-7980TH for $135 + $7 shipping from Servocity (best price around, ordered Sunday, it shipped yesterday, ought to have it by Thursday), 611oz of Torque @ 7.4V. It's about 10% larger than a standard servo, but I doubt you'd ever look back after getting it. The other Hitec servos with high Torque all seem to range in price from $90-$140, and are standard size. If you were to go with Servocity, if you "plug" their site somehow (facebook, twitter etc) and link them to it, they'll give you a discount code of some form or another on your next order. Hitec is also supposed to have amazing warranty, from what I've read it's basically no questions asked replacement/repair. These factors are what caused me to spend nearly $150 for a servo, as I will never have to buy one again for it.
Savox servos, from what I've seen (though I'll admit to not looking particularly hard) are overpriced for their rated torque, and have also read in numerous forums that the specs given for them are higher than what they actually perform at.
Good luck!