Willy, honestly it sounds like you need a Zen or a 4fun to really have fun learning whitewater. the 'Crossover' kayaks are great for their purpose.
( BTW, I want a Rogue or Remix XP10 for self support river trips...so if you want to get rid of yours, let me know....
If you are wanting to lean toward learning to playboat- the JK Fun series is a great boat, and for river running performance the Zen series looks phenomenal. Most of us end up with two (or more) boats- a creeker/riverrunner and a playboat. if you have to pick one first, iwould get a Zen unless you're inclined to jibbing. playboats flip easier, which makes them playful, ...and scary for beginners.
I have a Superstar, and a Superhero. I love both boats. I had a 4fun previously, and I learned immensely from it. they roll reliably, are comfortable, and stable when you need them to be, running rapids, but still 'playful'.
There are several boat swaps coming up, and the classifieds have quite a few 'all-around' boats for sale. CKS, 4corners, confluence all have swaps. CKS Paddlefest at the end of may will have boat demos and clinics/ professional lessons available. and used boats and gear for trade-in/sale. highly recommended.... I will be up there for that weekend for sure... thats where i wheel and deal my way into a new boat every year or so. (trade-in old boat for store credit + couple hundred cash = new boat.... or just find a used on in the swap for cheap. it's the way to go.as you found out buying new isnt always the best idea, because your preference will develop with experience.)
From my experiences, I am biased to JK, but some other brand river runners that people like would be WS Diesel, LL Remix, Dagger Mamba, Fluid Detox, and Pyranha Ammo...to name a few. River runners will be more crisp and fast then a creek boat, unless youre creeking....
you will find a buyer/trade in for the rogue no problem.... get a whitewater boat for sure unless camping and cruising are your main goals.
I want a Rogue so i can pack as much beer and keep up with Phil U. and Logan on the chama this weekend...! gonna get ditched with no skeggggggg. lol
Good luck!! SYTOR