I know I'm posting on this thread after the fact, but I thought I should chime in.
I worked in China for a few years, and did a lot of fishing over there. I was almost always targeting Northern Snakehead. Over there, I found that the ideal bait was a blue/white spinner bait with silver blades, or a chartreuse/ black with black and gold blades. I’d run them right along grassy edges or around downed trees (or trash, most places were essentially dumps), and they’d come out of cover and slam the baits. Topwater frogs worked as well, but these were really better on the southern varieties, down in Thailand. Buzzbaits, especially black and red, worked well at night.
I don’t know why I never had as much success on topwater, because it’s not as if there weren’t frogs. Moreover, I was without a doubt the only person to target them the way we do. I never once saw someone fish with anything other than a bamboo pole or net, so my lures were the first they’d ever seen. Granted, I was only one data set, so my results are probably very skewed. I did have a lot of tackle (and still do!), but I found that most of my bass kit wasn’t as effective as I’d imagined.
The only other thing I’ll mention is that in China (at least in my part of Fujian Province), the fish were really, really sluggish. When they hit, they hit hard. But more often than not, I could bonk them on the head and they’d hardly flinch. Maybe it was because there was no bass equivalent, so there is less competition for food. Regardless, however, their aggressiveness is definitely an American thing, as their overseas cousins are lazy more than anything.
Just my thoughts.