Taloraan should be in the middle so its running about 9pm, that way the player base should have built up somewhat and we'll get some bigger battles, preferably with Bestine and Ryloth around that mark as well, as they also benefit from bigger numbers. To start off with I'd say espa and entha, as low numbers don't tend to affect those too much, followed by Escape from hoth, then clearing, Research then Convoy raid, Endor strike team, then Ryloth, Taloraan, Bestine and hopefully ice plains with Yavin at the end.  This map order works well as player base builds, and allows a decent mix between maps people like or dont like, giving everyone a reason to stick around.

So:
Espa
Entha
Escape from Hoth
Endoe Clearing
Rhenvar Research
Convoy Raid
Endor Strike Team
Ryloth
Taloraan
Bestine
Rhenvar Ice Plains
Battle of Yavin

Bite my shiny metal Tie Fighter!