I play on starstorm one and 50/50 W/L ratio for republic empire in warzones.
PvE wise we have a nice community, atleast 50+ players on the later content worlds which is enough and theres always LFG "insert heroic quest name"
server is or atleast is stated as one of the most high pop PvP servers in the server list, usually a few hundred on the fleet at one time
English speaking language apart from the one or two loud mouth russians when on coruscent, but what else can you expect from the SWTOR version of the barrens? besides everybody loves the banter.
im from england and play republic and this server has suited me just fine, not ran into any problems yet, although once it took me 5mins to find a group for maelstrom prison