PL pvp gotta boring so me wanna have sum fun roshing!

can u ladies and gentelmen tell me wuts best roshing level and whos best roshers in dese levels cus me wanna joins their guilds or someting or somebooty?

1. 10-15
2. 15-20
3. 40-45
5. 50-51
6. 61-66
7. 71

thx men