Average dick, 1000%. Zero hesitation.
1. The longer your dick, the more the risk that you injure your partner or yourself. If you fuck really hard with a small penis and things go awry - it pops out. Long one? Google what kind of emergency room situations doctors can tell about. Broken dicks, twisted dicks, etc.
No thank you. I like mine whole.
2. The longer your dick, the less you fit. 11''? You're not going to be going balls-deep into girls. A lot of your dick is going to stay outside, unsatisfied. And if you thrust hard and hit her uterus hard? Yeah, it's not like in pornos. A lot of them are going to eject that sexual encounter and you'll get to have blue balls because she's hurting too much. Also, they don't meet up with you again.
3. There's a whole bunch of positions and sexual practices that don't work if your dick doesn't fit.
Doggystyle from behind where you slam your hips into your partner? Only works if the penis fits, otherwise your hips won't reach. That hip collision, however, can be incredibly pleasureable for both you and your partner. Dick too long? You'll never get to feel that feeling.
Same with lotus seat. Wanna have your partner sit on your lap, all the way down, and just melt against each other? Doesn't work if it doesn't fit. Maybe you can try to build a pillow construct around your penis so there's a buffer, but really? A sex position shouldn't warrent a construction job.