I recommend finding like 5-6 ladies who you think would be a great time, see them all, and judge for yourself. No, not being a smart ass, but what feels great to one person, may not feel as good to another...so the best judge as to who gives the best one is really up to you.
Ditto---reviews speak a thousand words......
but the best way to get a good idea is to google the girls name or number..then check her reviews on EVERY board she is on