I like the saber swing throwing enemies into the air. It's like with Sauron in LOTR at the start.
I do like using the environment against enemies as well. I hate those acid-filled bubbles on Felucia, so I try to throw enemies onto them. I also try to take out rancors with those plants that react to electricity. Those knock over rancors and I go berserk on them.
For those purge troopers, I target the enemies next to them. With Force grip level 2 or three, it will pick up those things and I throw them as hard as I can into walls.