Cruz carries some garbage, but he is far preferable to Trump IMHO. In any case Cruz is running out of time to exceed Trump in the delegate count. How scary could a contested convention be? At some point should Cruz pull out and back Trump?
What's good about them is what's bad about them. They are both alpha's, neither one will give it up. I think a Trump/Cruz ticket is unlikely for the same reason.
I even like Cruz to stay in the senate. He can do much good there over the next 30 years or so. I'm thinking that Cruz will agree to throw his support to Trump if no one gets the needed delegates in exchange for a supreme court seat. That would work for me.