+1. new interface is terrible.
KK's got some buggered javascript running on this one. I've also noticed that selecting an opponent ends up highlighting/enlarging a different one. What it seems to do more often times than not is duplicate the opponent that was last selected. Cool...
To KK, the updates to ToF and Arena have specifically been stat-based. (i.e. Ego, Atk, Def, etc. are all now extremely important when choosing opponents to actively battle), this new interface completely removes the user's ability to quickly and easily digest and compare any of these stats. Revert this "update". It's awful.