I'm set on resubbing after I finish off KOTOR this week. The patch notes address some of my initial complaints and I've grown addicted to Bioware story mechanics after my experience with the Mass Effect games and KOTOR in my time off.
Since one of my main gripes with leveling was the repetitiveness of non-class quests the second time around, I'm going to skip that problem and switch factions.
Originally I was Sith on The Swiftsure and IT WAS AWESOME, but I'm not sure that server has the greatest Republic activity. I want a server with near non-stop activity and very healthy GTN economy (preferably the most crowded for the Republic side). I am more than willing to wait in queues to get what I want. If that server happens to be The Swiftsure, I'll go with not making the server swap.
Speaking of server/faction swaps, does my Legacy vanish when I switch servers or factions?