Immobilize protection without protection

It seems a silly question and one that I know I should know but I don't and need to guess it before I run a respec on one of my toons...

Basically, does the hover power grant any form of protection against immobilize powers like it does against knockback (ie, you get flipped but don't actually go anywhere?)

I was wondering because immob protection seems fairly useful but I don't know if its worth using an entire powerslot just to get...

Any thoughts?

Hover grants zero protection against immob unfortunately. Only one of the pre travel power picks that does is combat jumping im afraid.

It doesn't actually offer any protection to knockback either. Though you don't animate getting back up the spin in air animation is the same length so you're still out of combat for that period whether you're flung back/down or spin.

Yup, better get a karma: knockback asap!
But I think he has right in one thing: You're not knocked BACK, just knocked "DOWN". Might be wrong!