I'm not trying to say that boring = broken. The Slayer is 'broken' for different reasons (really, by not being as broken as classes with dailies - the same problem that plagued the Fighter through every previous edition).
You refer to balance and broken a few times here (and in your other posts), and I get that part of your concern is that the Essentials classes are not balanced alongside the pre-Essentials classes. I think that may be at the heart of our disagreement.
I can understand your concern - I had that worry when I heard that Essentials classes were messing with the resource format. The implementation of those classes, however, has removed my fears. A Slayer is, in my opinion, perfectly balanced in nearly all cases against your average Daily-using pre-Essentials character.
Yes, some characters might be really optimized with overpowered Dailies that the Slayer can't quite compare to. But... no worse than those same optimized builds vs someone taking a typical Daily that just does some extra damage.
As it is, you feel there is a fundamental imbalance, and that is why you are worried about the line. I get that. I don't agree about that imbalance, and I doubt either of us is going to convince the other otherwise, so that does probably explain why we won't be able to come to a consensus here either way.
It's an example of why "it's only an option" isn't a defense. It's sometimes the only option.
"It's only an option"
is a valid defense for the game as a whole. You don't like the approach of Encounters, that's an issue with it, not with Essentials. My friend Eric likes playing divine casters. He can't do so in my Dark Sun campaign. Should WotC have never put out the Dark Sun book? Or does the issue instead rest with me for running a no-divine game, or him for choosing to play in it?
Your issue is with Encounters, and not with Essentials itself.
Lack of choice and introducing class imbalance are bad things. Closely related things, really. Essentials does a lot of that. The Slayer (and even more so Theif) being potentially boring are really just visible symptoms.
Again, I don't see any class imbalance in play. (Honestly, I see more of that with some of the Psionic classes, despite them operating on a nigh-identical resource scale. Bad implementation broke them, just like good implementation (IMO) kept the Essentials classes from emerging unbalanced.)
The other elements - lack of choice, boredom - are, again, subjective. Those who like the Slayer either enjoy the style or find it an acceptable trade-off compared to other options. Or they feel there are enough choices to be made or expanded upon via feats, multi-classing, etc. As I said before, I'd like to see more - a full hybrid/multi-class options for them - but the current options, while slim, are not nonexistent.
I have to agree. Essentials tried to do a lot. It seems most likely that 'well poisoning' will be more the well from which new players are drawn. That is, Essentials is indoctrinating new players in old prejudices that we had only just begun to overcome.
Again, we'll see. Despite all the previous editions of Fighters, we had folks who wanted more tactically complex Fighters, which led to stuff like Book of 9 Swords, and 4E itself. I don't imagine that all those folks who prefer that style will suddenly turn away from the options that cater to it, just because the newest stuff goes more towards an older style. And I imagine that new folks who (just like all the folks previously wanting more complex Fighters) feel that same urge... will be able to dig around and find what 4E has to offer that caters to that style of play.
In short, I don't think these 'prejudices' are in way forced upon the players. If folks weren't brainwashed by them
when no other options existed, I don't see them somehow succumbing when they do have those options available.
But, again, I suppose only time will tell.