Does the choice of peppers affect the 'flavor of the heat'? Working with a variation of this chili recipe I meticulously cleaned my peppers of seeds and veins to produce a 'milder' chili. Unfortunately this batch was almost 'too mild' (heat wise, the flavor was very good). I am thinking that next time around I will leave in some of the seeds/veins to give it just a bit more 'kick'. 

The question is, given the choice of Anaheim, poblano and jalapeno peppers would it matter to the flavor which pepper I allow to be the source of the heat? I know that each pepper has it's own unique flavor to offer and each is going to provide a different 'level' of heat, but will the 'heat' taste differently based on the choice of pepper?

[for anyone interested, the variation that I apply is to substitute buffalo for ground beef and fresh tomatoes for the canned, I don't believe either should affect this question.]
The heat is the same; all peppers contain capsaicin. The Scoville scale defines heat in terms of capsaicin content. Use the peppers that have the flavor you want, and make it as hot as you want, and you'll be set.

And the flavor besides heat is definitely concentrated in the flesh, so you shouldn't notice any real difference in pepper flavor either.