what is the best guage of strings for thrash metal/solong/sweeping/ and good tone

i currently have 10's
due to experince i found that 9's are the worse
should i stay with 10's or change?
i wanna get best possible tone
It depends on a lot, what tuning are you playing in? what scale is the neck of your gitar? there is no best gauge, all just personal preference
Ibanez RG2550E
Fender FM212R amp
EHX Metal Muff
Ibanez WP-7 Wah