I had my fair share of stupid lovers, and to be honest, I'm quite over it. If he was bright and we could hold a good conversation, penis size wouldn't be a huge issue. After all, men are more than just a dick, and they can use lots of other body parts during sex.
The only reason that I picked "be alone with toys" is that I'm kind of a bitch IRL, so I can easily see myself being forever alone with my Hitachi. Which is completely fine by me.
I think the options aren't really explained as well as they could be for this question, and there's no "other" option, which is what I would choose.
No matter what, I would never date a dumb guy. I wouldn't be able to deal with having to talk down to him all the time. He doesn't have to be highly educated, just intelligent. Although I do prefer people who have the same level of education as I do.
But I'm also wondering if either partner option excludes toys. I could still be sexually satisfied by a man with a micropenis if he was willing to put on a strap-on and fuck me with a 6 inch silicone penis from time to time. And if he was good at oral sex and hand jobs, and he enjoyed watching me masturbate. And he was willing to let me peg him. And he was willing to dominate me. There's so much more to sex than just penis.