Hey there, and no I'm not trying to start a ship war, BUT--
HERE'S MY PERSONAL OPINION. I am a personal Ronance shipper :)
Why not Rockie? See, we haven't learned enough about Vickie, in my opinion, to really know what's her deal to be honest and hasn't had enough character development in my eyes... As for Robin, we've seen Robin go through some great character development with Nancy on cases and such.
BUT I do not see anything wrong with Rockie!! I think it can be cute if Vickie has more of a development in Season 5, but as we know, Ronance probably can't be canon anyways, but we can dream. It'll likely end in Jancy, but that's okay. I still see Robin getting a potential happy ending too.
Ronance in my opinion though; Nancy and Robin have been together doing various stuff for investigation, and not only does Robin not stutter around Nancy (well she does ramble, but she also rambles around those she's comfortable with), but she also stood up and protected her against their denied entry to the facility when they were trying to reach Victor Creel. Also Robin's willingness to help Nancy with a lot of things is also a little bit of a sign. Sure they do have a good friendship, but I can't help but feel Ronance. Now, as I said, that is my personal opinion. BUT, what's your opinions on Rockie and Ronance? What do you prefer?
And ALSO Robin having to clearly state that Steve and her were just completely platonic, which, is 100% real, I love their platonic duo. <3