To each his own. Only place I would take a wheel rake over a rotary is the scrap yard. Your neighbor needs to read his owners manual or ask for help if he can't make a good windrow.
Three point is going to take a bigger tractor, not for horsepower, but because it's heavier hanging off the back so a light front end may come into play. I like the 3pt for showing inexperienced operators that want to help (the wife) how to rake. If they get screwed up while doubling or something, just pick it up & turn around or backup. Not as easy with a trailed. Actually caught the wife making trips around the field once cause she missed the row with a pull type. That said, I think it's easier to setup the pull type to follow the ground for different tractors if you switch at all. No that the 3pt can't, just a tad easier on the pull type.