I agree with Karen. These are questions that everyone has a different opinion about. Personally, I think Flaming is a great place to start too. I would recommend trying their tart wax, Problend 650. It's a para/soy blend. It holds a lot of fragrance and easy to work with. It'll work for shapes and clams. You can go from there as to whether you want to use an all paraffin or all soy wax as you learn more about the craft. You can get this same wax from several different suppliers. Virginia candle, Just Scent and Rustic Escentuals, and Scented Expressions are four that I know that carry the same exact wax for tarts and I'm sure there are more.
As far as who has the best fragrances, you're going to find that every supplier has great FO's and duds and those are subjective too. For instance, I think the best birthday cake comes from Keystone (Peak) or Fragrance Buddy, and I don't care for birthday cake from Aztec, ICS or Lone Star, but a lot of people love their birthday cake fragrance. You'll find a lot of great information on here that will help you through your journey. Welcome to your new addiction!
These are some of my favorite suppliers in no particular order:
Aztec
Flaming
Texas Candle Supply
Nature's Gardens
Midwest Fragrance Company
Candle Science
Just Scent
Fragrance Buddy
Indiana Candle Supply
Scented Expressions and Pro Candle Supply are new to me and I've loved their fragrances too.
And there are many more but I can't think off the top of my head.