I'm A Banana
Potassium-Rich
Remathilis, I can't give you any more XP, but most of your posts are well worth it. 
I wonder if this mythical "difference" I keep hearing about is effectively a "gearhead" vs. "casual player" distinction.
The gearhead notices things like "poorer baseline damage" and "possibilities for mobility" and specific power tactics and how a playstyle can make something "inferior."
The casual player just notices that whether I have a dark pact with unpleasant forces, or a bow, I'm doing the same "point and shoot and effect" mechanics.
I know I don't care about specific power strategies or inferiority or superiority or compensating for some comparative minor difference in damage or attack rolls or eking out every +1 or whatnot.
I care about whether my warlock will have to fight and kill the things she's sworn her soul to, and whether my ranger can help my party hide in the wilderness from the orc patrol.
Some people see a +2 Damage and see a +2 on attack rolls and see a world of difference.
Some people just see that they're both bonuses to things that make killing easier, and which one to get is a toss-up.
Maybe you gearheads see a glaring and obvious difference, and people who are less hip-deep in mechanical gristle don't see it, because it's not relevant to them.
It's not relevant to me. I am perhaps beginning to see how it could be relevant to others.
You miss the point. It's not about "doable." It's about where the difference happens.
It's pretty clear to me that the 3e warlock and the 3e rogue were very different characters, and different types of roles could be played within those mechanics.
It's not so clear to me that the 4e warlock and the 4e ranger are different. Having played and DMed for both, I couldn't always tell you from their combat behavior which character was the one with his soul sworn to hell, and which character was the wilderness archer. They didn't act much differently

The same is true for the archer ranger and the warlock. The archer ranger is (in my exprience) very easy to play just by pointing and shooting. The warlock, on the other hand, has to do all sorts of tricky stuff to make up for its poorer baseline damage, for example by taking advantage of the possibilities for mobility opened up by its shadowwalk, its Misty Step and Eyebite (in the case of a Feylock), etc. Played like an archer ranger a warlock will be obviously inferior.
I wonder if this mythical "difference" I keep hearing about is effectively a "gearhead" vs. "casual player" distinction.
The gearhead notices things like "poorer baseline damage" and "possibilities for mobility" and specific power tactics and how a playstyle can make something "inferior."
The casual player just notices that whether I have a dark pact with unpleasant forces, or a bow, I'm doing the same "point and shoot and effect" mechanics.
I know I don't care about specific power strategies or inferiority or superiority or compensating for some comparative minor difference in damage or attack rolls or eking out every +1 or whatnot.
I care about whether my warlock will have to fight and kill the things she's sworn her soul to, and whether my ranger can help my party hide in the wilderness from the orc patrol.
Some people see a +2 Damage and see a +2 on attack rolls and see a world of difference.
Some people just see that they're both bonuses to things that make killing easier, and which one to get is a toss-up.
Maybe you gearheads see a glaring and obvious difference, and people who are less hip-deep in mechanical gristle don't see it, because it's not relevant to them.
It's not relevant to me. I am perhaps beginning to see how it could be relevant to others.
Seems like these are all doable in 4e, too.
You miss the point. It's not about "doable." It's about where the difference happens.
It's pretty clear to me that the 3e warlock and the 3e rogue were very different characters, and different types of roles could be played within those mechanics.
It's not so clear to me that the 4e warlock and the 4e ranger are different. Having played and DMed for both, I couldn't always tell you from their combat behavior which character was the one with his soul sworn to hell, and which character was the wilderness archer. They didn't act much differently