permission plugin for whole network

Hi,

i'm wounder now - witch plugin is preffered for whole network right now

i always use groupmanager - its OK but need many configuration on single host.

now when we have EssentialsX and it doesn't support GroupManager - i'm wounder where and how i should switch its not so easy becouse currently i have 1.7 1.8 1.9 and 1.10 servers connected to one network and modded baded on 1.7.

any good tested permission managers you can recommend ?

for single host - or meybe on bungeecord side...

permission plugin for whole network