I haven't tried the Dobyn's Frog Rods, but from everything I've heard I'm sure they are excellent rods.

I throw a lot of frogs and it's one of my favorite ways to target big largemouth. I like the Lamiglas XC725 "Tournament Frog Rod" for hollow bodied frogs in slop. It is 7'2" and has a lot of power to extract them from the junk, but not much tip, as Supermat referred to.

For walking a hollow bodied frog and for throwing soft plastic frogs I like the G.Loomis FGR863X. It has a nice soft tip but still possesses a lot of power for solid hooksets and hauling them in.