I had a issue once where I had to change positions because the fellow was hitting my cervix. He was very nice and accepting of the fact, and we both still enjoyed ourselves very well--which is good, because that conversation was one I'd feared having as a provider before I had it.
In any case, the actual characteristics of the penis are one of the less important things (barring things like rashes or sores, of course)--there are fun things to do with all of them. (I think the variety is kind of neat.) Courtesy, being able to enjoy yourself, and being willing to listen to the provider--those are all things that are way more likely to make me happy than nearly any physical characteristic.
Meanwhile, if you're so concerned about your penis that you have trouble enjoying yourself, and are pretty sure I'm mocking you in my head--that's not going to be a fun date for either of us, pretty much no matter what.
Dunno if that's everyone's view. But as for me? Flaunt what you got, 'cause they're all pretty cool.