Breaking Strings (need advice)

I've gone through 3 sets of strings in the past six weeks and I don't think I'm a particularly hard hitter just like topspin and have a harsh stroke.

My first was natural gut poly, second was multifilament which didn't break but isn't playable every string in the sweet spot has pealed, and third was a regular poly.

I've generally gotten the most mileage out of the multifilaments, but am interested in trying Kevlar.

I'm hitting with Babolat pure drives 3-4 times a week. I have 2 more Babolats to play with so at my current rate at least four weeks.

What strings do you guys play with or what combination would be worth trying? I want a good mix of spin and power.

My back hand is a generally flatter two hand back hand with slices for some of the harder to reach and lower balls. My forehand is a continental grip (unusual) but works with my size.