I wouldn't want to ignore, or miss, the point you want to make.
Which skills to you see Trump possessing that Cruz lacks?
Leadership and surrounding himself with people who have good ideas. Trump bashes the other candidates a lot and can be a blowhard, for sure, but generally his campaign is doing an excellent job of taking a positive message to voters. His stump speeches focus on his policies that would bring jobs back to the country. He bashes Hillary, Bernie, and Obama incessantly. He doesn’t send voters shame mailers, or pander to them for “emergency” money with disingenuous personal appeals several times a day.
Contrast with Cruz, who has given the epic slimeball Jeff Roe the reigns to his campaign, and followed all of his bad advice to go as down in the mud as he can possibly get in an effort to mislead voters. And Cruz accepts no responsibility for this, and just views it as “business as usual”, or as Roe says, “politics ain’t beanbag”. Cruz’s messaging is all messed up now because the actions of his campaign don’t comport with his claims of being not-just-another-politician.
In terms of leadership and judgement about the company one keeps, I have to say that Trump seems miles ahead of Cruz.