GameArena is the best server. I usually play in Internode (IGN) servers due to the teamwork around there. 150ms is the best if you want to play recon. Anything higher than 150ms only allow you to snipe air more than heads.

Titan maps lags due to n00b commander that move the titan around since the sync bug for titan isnt fix. So when you move the titan, bandwidth usage increase and mostly like server crash.

So tip : GA #1, 3, 5, 15, 20 is the most frequent crash servers.