The big three as I see them are Perron Rigot (my personal wax of choice), Berodin (formerly Berins) and Lycon.
These are also the most expensive waxes - as with all things you get what you pay for.
If you are looking for more mid range Hive Options isn't too bad. But you may also want to try Waxxpress or however they spell it. If you are looking for a roller system again PR and Lycon do rollers (I use PR Homme personally) but Clean & Easy is popular, though I prefer the Hive Multi Mini heater.
You also need to look at what size heater you want - I always recommend a 1000cc Hive Heater.
Now if you want a cheaper wax you could look at Pro Wax from Beauty Express or Salon Systems wax, or for a really cheap (and remember you get what you pay for) you can also pick up basic waxes from most wholesalers.
So as you can see there are many many waxes to choose from, to suit all budgets. All depends on what you are looking for.