It's the same for both sides the number one thing that folks need help with in upper levels is sc attack strategies. I think you should be able to attack any base. I'm not scared of your fortified corner, 12 sonic cannons, or concealed sc.
There are very few sc's that can't be activated before an attack, and only trapped machinery can't be pulled out in the open. If someone is smart enough to keep their sc ten away from a place where I can drop a rebel soldier, I send in a gamorrean. All you have to do is get within ten squares so find a turrent close enough, blow the wall, and aim a pig. If it is anything but bikes put someone far away and they will start meandering over there blind to all of the other troops that are killing them. Bikes redirect to the closest target so once they arrive put down Luke or Vader very close and activate their whirl. Then put the other troops behind them. Another more flashy (but harder) trick for bikes is to put two twileks right in the middle of them and when they blow so do the bikes.
The only thing I worry about with sc's is them taking up precious attack time.