I play rebs usually and have a lot of ships and lists I can run. I do not have many imperial ships and would like to expand my options at the 400 point level a little more. I consider myself a casual player, but I do occasionally participate in local tournaments.
I currently own the following imperial ships:
1 ISD
1 VSD
1 GSD
1 Imperial Fighters
1 Rogues and Villians
It seems like dual ISDs is a popular list, but I have been thinking about running 1 ISD with 2 VSD escorts as well, and having more ships in my list usually makes me happy, just cause who doesn't love lots of minis out there flying around.
I'm also considering buying a 2nd GSD or a Raider, but I don't think I'd use the raider much in my Imperial lists, they don't seem very useful on their own.
Thanks for reading and your suggestions.