The question is the title
Subjective, but that’s a boring answer.
Throw Yo and Zipline are great! Many flavors from each brand to dial in what you like, top tier quality and service.
YoYo String Lab makes some fun stuff, same with Twisted Stringz.
Original Throw has some nice bulk as well.
Everyone will have a different answer but I’ve been working my way through YoyoStringLab and I really like Type X and Plutonium. Plutonium is super whippy and Type X is a good balance between soft and whippy + holds tension well. Type X is probably my favorite. Don’t like Ammo so much, though.
Oh, and if I’m buying bulk, Sochi x Zipline AlphaLine for sure. It stays out of stock, though, and my supply is dwindling. Hence the YoyoStringLab mission.
Zipline ZS Air lasts forever. No more bulk string required. You wouldn’t even guess it’s 100% nylon.
+1 for zipline. i play exec lites but I’ve tried most of their current runs and they’re all amazing players and as @Shwa pointed out, they last FOREVER
Alphaline has been my go to for bulk poly (but I am intrigued by Canopy as cake has given it top reviews.) I have splurged on poly nylon blends, but I haven’t played much unresponsive lately, so I stick with Alphaline on my metal fixed axles, and the few unresponsives I play
For wood axle, bulk cotton I love yoyoexpert type 10. For premium cotton, I love Zipline Kotn
See my horn here? Watch me toot it.
Throw-Yo strings, FTW! Lots of different blends depending on your preferences/play style, and they last forever. Just wash’em every once and a while.
Like others have said, it’s subjective. Except for ZS.Air. It’s the best I like Sochi Fat for bulk poly.