I hate Ultis

Yes I can see why you hate ultis.
They certainly serve their purpose.
It is, however, fairly easy to stop them, and if you stop them you usually get a metal donation and the enemies' micro will be wasted(ultis require a lot of micro to be effective) because their ulti died. Some good ways to stop them are fleas, darts, or other raider like things that are cheap, to screen your units, or get some napalm stuffs to decloak them.

I personally like them but that is just because I usually am destroying other people's stuff, not them destroying mine.

Dunno, in a battle rife with impalers, lances, tacnuke launchers, trench warfare and every other form of misery maximization, there is something very refreshing about employing an ulti, scuttle or other sneaky death. Definitely a good idea to precede the movements of a large targets with some scouting/screening.

I haven't played FW in some weeks but I can 100% vouch for that statement.