Its not worth it to use lower level leaders such as timber or vansaar, because their stats are average, and they have no bonus's, and a crappy ability, which is team +1 damage. But on the other hand, the higher level leaders with like 8 power and 8 damage, they are worth using.
P.S.Any pros out there dont leave negative comments about my post, this is only my second day playing...
Only comment about your post Gman would be the lack of an 8 damage leader card.
though they do have a series of 8 power cards.
Leaders are very strange...
you can use them, but they take up large 5 star card slots which makes them harder to use in ELO.
they have a slightly stronger use in type 2, where you can play to win in 3 rounds or less while using the leader ability as a crutch.
Leaders like Ambre can really beef up 3 star cards, especially ones like Lobo, and Giovanni.
also, Timber can be useful in type 2... assuming you don't plan on using him as an attack card, and more as a damage increasing free fury (free fury, as in making a 2 hit KO, having + 1 damage on 2 different cards is + 2 damage)
cards like Morphun are nice, because those extra pillz combined with 8 power just in case... can really make a match go in your favor.
Hugo is the same way... that + 6 attack is often overlooked.
which actually makes Hugo pretty handy in ELO... and even in daily tournaments.
Bridget? i don't know, + 3 life might be able to save you... ( i don't know how it affects poison)
Eyrik or Eryik... i don't find quite as amazing... would have to use 5 or more pillz to over come the + 6 attack from Hugo.
Ashigaru, has a lot of use... though is a bit too aggresive for good points in tournaments...
so for the most part?
no, leaders are usually not worth playing...
but some times they can really make a game winning difference.
like playing against Kolos + Ambre. 10/10 powerhouse.
Leaders weren't worth play 2 weeks ago! know with survival type 2 you need to have a leader in your deck if you want to get far because "your" jackie, dorian, wee lee, tanaereva deck won't be that good against "my" jackie dorian, tanaereva, ambre deck!
when you talk about tournments and ELO (survivor or not), then no! They aren't worth play...
Summary in one words: "Depends". On what does it depend? On the deck they are used in!
I still have not seen the point of Vholt though and also thin that Eklore is pretty much pointless. All the other ones have a fair spot in the right deck.
Leaders are best with mono-clan. Timber is only good with life gain decks(Nightmare). Ambre are the best all around with anyone but her weakness is her own stats(so you have to win with your other three cards most the time). Hugo is best with +/- attack clans. Morphin with +power. Eklore is an odd critter, mainly to make your opponent panic and waste pills early which combos nice with her high damage. Eryik is best with All Stars. Vholt... near worthless with that high min. Maybe Pussycats but really no. Ashigaru, really hard to play but good in Survivor with high star decks, also good in decks with really strong powers like Nightmare or Piranas(But sadly Ambre is better). He is underestimated because his power gives you no math advantage just a stratigic one.