I have a couple Elite requisitions burning a hole in my inventory, short only the shield requisition, and am curious as to whether the veteran players feel the MACO space set or Omega Force space set is the more effective? Tactical captain in a fleet escort.
I've been trying not to mix the equipment sets up, if for no other reason than you get some bonus effects by using multiple items.
I've flown both the Breen and Jem'Hadar sets, and found each useful in it's own way (though my tactical captain doesn't benefit too much by the abilities either of those sets provide) but have been using the Borg set for its defensive benefits. And the tractor beam comes in handy in STFs. Had to turn off the visuals, though. Made my fleet escort even uglier.
On a side note, I seem to be noticing a lot of really immature players lately. Lots of name calling and childish behavior, particularly around DS9. It's really annoying, and I felt bad for a player who was singled out in an STF by 2 others after he blew something up prematurely. They spent more time whining on the chat than they did trying to deal with the borg ships.