My personal preference is monolight strobe and Speedlites for mobility.

Paul C. Buff Alien Bees and the Einstein are affordable and versatile. Also, they sell a battery pack that is very portable and will power two lights easily.

However, about once a year the club puts on a model shoot where you can try out each of the four lighting setups and get an idea of which is better for you.

Just my two cents.

Ed