For basslines the Junglist was unbeatable,. The bass saturation section was luvverly, and the oscillators went a lot lower than most VST`s

The hydra has an extra oscillator (so now you have 3)
as well as tweaked features.
So yes, it is better.
Personally I think it is worth it, for the bass power alone.
Rich, smooth, deep and full analogue sounding bass.
It also does good lush pads.