Yes, you do
Ghost armour gives you 6 hp, +2 moves, +20% defense (permanent half cover, stacks with normal cover), grappling hook.
Oh, you get ghosting with that, which gives you either free scouting, +100% crit, or get out of jail free. Four times.
Titan gives you immunity to fire/poison (marginally useful) and 4 extra hp over ghost armour.
Yes, but it's still fun to see that assault with 28 hp.
Weirdly enough, I never found MC that great of a skill. I always seemed to be able to kill everything anyways, so I was left with an MC'd baddie that I didn't know what to do with.
Mostly though, I think it was always that I had something better to do with my guy. Heavy - Rocket launcher, or blasting down a Sectopod; Sniper - Double Tap/ITZ; Assault - MC this muton, or blow this cyberdisc to smithereens... I suppose if I had more psi supports, I'd do it more.