I prefer electric.
It is quiet
It is clean
It is cheap to run
It is easy to switch and use with temp controllers
I like the HERMS.
You are heating your HLT water anyway, so you do not have to build a RIMS heater separate from it
You can step mash with a HERMS, people here do it
It requires one less temp controller and element.
The choice is yours, there many threads here to read, learn... both are great systems and allow excellent control and repeatability.