Rank of order of Clone Troopers in order of Effectiveness

1. Rex

I dont use clones, but when I fight them I take out Rex or Echo first. Echo has AOE dispel, heal, TM grant and Assist and those are pretty baller for the clone team.

Also I had a g10 5s stacked with tenacity take out 2 3v3 teams solo. I could not land daze or heal immunity on him reliably and he countered me to death.

they're currently all meh, even rex's lead doesn't cut it anymore.
I'd still rate rex the highest due to his lead and tenacity up+TM. 5s second best since he's useable outside of a clone team.
cody/sarge/echo are all pretty much equal since you're kinda forced to use them together in a clone team anyway.

1 Rex
2 Cody (zeta) (tie)
2 5’s (due to ship) (tie)
3 Clone sarge (ship)
4 echo

I only use Rex but I think clone Sargeant is definitely the worst

1. Rex
2. Cody if zeta’ed and you don’t have any other team for p2 tank raid with leia. If you don’t have him zeta, don’t have leia, or you don’t have a problem with HAAT, he is 4th and all others move up
3. 5s (who could be 2, see above), ship
4. Echo - heals, tactical
5. Sarge - has ship but only because he is otherwise pretty forgettable. His TM reduction is nice at lower levels

The problem with ranking after 2 is they were designed to function as a team with each having supportive rolls.

Personally
1. Rex
2. Fives, because of counters and bonuses
3. Cody if zetad is not fourth
4. Sarge damage and criticals
5. Echo

I'll rock the boat and say that Rex isn't everything he's cracked up to be. He doesn't hit that hard and he doesn't have that much staying power. People vote him highest because his leadership is decent and generalizes to all toons. But as a single character, I'd vote for Fives first. He's a lot harder to kill and a lot more annoying.

I'm with SamuraiUX
Fives is the best, also for being the one of the highest Defense stat char . And also his ship is quite good
Second for me is the Seargent because of his ship. Ppl dont use it and as a reinforcement can turn the tides in a fight.
Third comes Rex, useful in the past for me but now there's no place to use him and his ship is meh.
The rest are... the leftovers needed for a full clone team but nothing more.
Wish there were more to play with, as with the troopers

i use rex quite often in TW/GA, unlike 5's for who i can never seem to find a use. Granted, he's only g11.