pike cichlid? Haha, no way
Snakeheads rip fish in half and devastate whole tanks.
Having been the owner of 3 snakeheads, wolf fish, pbass, various other cichlids, vamp tetra, freshwater cudas, tiger fish, jardinis, electric catfish etc etc...
I can honestly say nothing really compares to a snakehead and their personality.
I'm not trying to be mean, but it's true. That's why channas are my favourite fish, they are really unlike any other fish.
The same for something like arowanas and stingrays. There's really no substitute for an aro or a stingray is there? They are completely unique, so are snakeheads.
I've never kept a bowfin, but from what I've been told, they just look similar.