Well, I'm fine with Pansage being unevolved, though I wish he another Pokemon, possibly part of basic, middle, and final stage, and at least reach it to its middle stage. That said I am annoyed that Stunfisk hasn't received a win yet.
Iris on the other hand. Emolga is tiny, but okay, and about Axew. Well....the writers chose for it to be constantly out of its Poke ball, just to copy Dawn who copied Ash simply because a Pokemon HAS to get a whole bunch of screen time, simply because Ash's Pikachu is doing it.
That's why it's very likely WHY Axew hasn't evolved yet. Because it lives in Iris's hair. Maybe marketability has something to do it. But I really thought Tomioka was going to come through with the "promise" that Axew would reach its final stage, which likely won't happen until Iris makes a guest appearance in 6th gen (assuming Ash will be in the 6th gen anime).