What's everyone's favorite studs? 
idc about incentives or any of that, I am considering breeding a mare that has great bone, athletic and quick, she's perfect honestly. Old school bred, nothing over 15.1 hands that would compliment her? 
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I'm breeding to YQH Frenchman Fly. He's FF, and maybe something else, but not enrolled in everything under the sun (which is completely fine with me). I love his pedigree, he's proven himself as a performer, and I've ridden an offspring that was nothing shy of downright fun and easy! I think he'll cross really well on our mare, and I love that he doesn't break the bank. Plus, I could stare at his picture for days. ;)

I chose Roller And A Shaker from 88 Ranch Performance Horses this year (same ranch that owns Mable, the great bulldoggin horse).

He seems to have a great brain, as they ranch on him, and he was running low 17s on a standard pattern. Pretty to look at, and lines that are proven and a complete outcross.

Smashedonpepper has this guy

https://www.allbreedpedigree.com/colonel+austin2

Bouncy Beggar Boy in Bivins, TX

Depends on what the mare is bred like and what your budget is. 

The stud I've bred to the most is First Down French. I really like him as an individual and I've bred 5 different mares to him all different bloodlines and have consistently had nice fillies that were easy to sell. 

Good choice! I have a 3 year old by Fly and I love her! So friendly and smart, plus pretty! My friend has a 4 year old by him as well and she has taken to barrels like a duck to water this year. 

I'm breeding to Famous Bugs this year. He's really reasonably priced for all that his offspring have done. Plus, his babies are known to have good feet and be great to train and be around. I have a trainer friend with several of his babies that she trained and she and her young daughter run. She says they learn so fast. 

So great! We sold ours a year ago, but the hone he went to LOVES him bc he's so easy and natural!

Another I absolutely LOVE is VF Firin Fun. He's absolutely stunning in person, and kind as the day is long. I have a 5 year old by him that's wicked athletic but like a golden retriever on the ground. Our 4 year old daughter loves to feed her and lead her around for fun. "Marshall" doesn't have a ton of babies compared to some, but they're so trainable! He's on Facebook!

I like the fact that you are looking for old school blood lines. They are harder to find these days and I think they help the gene pool. But then again, the old school blood was new when I started out, lol.