I personally find 3v3 and dominion to be much more fun.

5v5 is just farm creeps for 30 minutes, team fight a couple times(everybody group up and press R at the same time), and stack health.

3v3 and dominion are more pvp focused, 5v5 is just farming simulator 2013.

So tell me, what do you enjoy about Summoner's Rift?

Sr is the most balanced, I hate getting steamrolled in 3v3s because of a gimmicky teamcomp. Not sure if it still happens in S3, but did you ever see a heavy mobile tanky dps team comp? You just can't do anything.

All the champions are balanced to SR, not other maps.

There are three different phases to SR, the laning phase, the breakdown phase, and the teamfight phase, and all the champions excel in different ways in each of them.

Enough space to chase, control map objectives, run, ward, skirmish, backdoor, front door, every strategy is there.

On 3v3 it's just pick 3 bruisers and win a team fight gg.

you do not play it, it's more fun than that