Right now I look for three things in a paddle:
1) light weight (yet still durable)
2) good catch (but not TOO much so it wrenches the shoulder)
3) smooth feeling in the water
My preferred configuration being 54", straight shaft, spoon (curved) blade (I'm 5'9" and primarily paddle decked boats (hop in an OC2 once or twice a year, as well as guiding rafts)
I started out with a borrowed Werner. It wasn't a spoon blade, but I really liked it as it was light. Once I compared it to a curved blade, though, I never went back....
My "old favorite" is a Schlegel FGC spoon-carbon blade with an aluminum insert, carbon shaft. REALLY light, great feel, and it lasted from 1995 to last year
. I had to repair it a bit (beef up the edges and wrap the shaft near the T grip where it started to split), but it survived paddling all over the Northeast, and numerous Hudson Gorge trips.
After that I tried a Waterstick...(one of the earlier designs)-GREAT catch, but it was heavier than i thought it would be (I bought it for creeking...heavy duty shaft). Did NOT feel smooth in the water too me, but that's just me....
Echo-again, older design-NICE blade (again a spoon or curved blade), great feeling in the water, but the blade size was a bit small (the blades are now bigger I believe)
Mitchell-GREAT feeling in the water, good catch, my only complaint is the weight (wood shaft / carbon blade). No, it isn't THAT heavy, especially when compared to my Illiad or Norse paddles I use for guiding rafts, but compared to my Schlegel it's at least 50% heavier....
Climax-I've got one of Maxwell's crankshaft paddles. Bomber paddle, weighs about the same as the mitchell. I'm still not completely sold on the crankshaft idea, and prefer straight shafts, but I do like using it occasionally as it is a nice paddle with good catch and feeling in the water.
Rough Stuff-I JUST got this one, and it's looking really sweet right now, though all I've paddled with it is the Blackwater, so it's not a perfect comparison for what I normally paddle. GREAT catch, slices through the water for underwater recovery strokes (cross strokes, etc...) VERY well, perhaps the best I've seen. Weighs less then the Schlegel currently does, though I think the Schlegel weighed less originally. I'm not sure it's as "smooth" as the other blades, but I'm not sure yet-it's a bit more "square" than the usual "rectangular" paddle (e.g. a bit wider but not quite as long), so it may just take some getting used to. We'll C!
I still have all my old paddles in case anyone wants to try one (or two). Primarily they get used now when I'm infecting folks with the C1 " bug"