you have 2 choice basically.
1. join the strongest group
2. stay in your group. and formulate a plan with you group mate.
either way, both of them will bore you at some point.
1. you will get bore because you always win and feel like there no good fight anymore.
2. you will get bore because you lose too often that it make you sick.
your choice though.
oh wait, there is a 3rd and 4th choice actually. you said that there are 4 group that active. if you want beat the strongest group, why not disband the weakest 2 groups and join the second powerful group?? but again, there are consequence from this option.
the 4th is what you already state, quit the game and be happy :lol :victory: