I like to run rivers and play, but don't want to switch paddles according to what I'm doing that given day. I have found that the Werner Sidekick, with an oversized play blade gives a strong forward stroke for river running/creek w/o much flutter and a great pry for playboating as well (as the blade was designed w/ freestyle in mind).
I like the Werner Sidekick carbon 197 bentshaft, and have been using this blade for about 3 years now...its sweet!
The shogun is also great for river running but not my favorite for Colorado park n play, but we've seen it done before. Go carbon for a lighter and stiffer blade, which means less flex and a more powerful stroke (unless you have shoulder issues then glass could be easier on your joints) Check em out here: