I guess it would depned on why you wwere wanting to boost it - just make the Drive sound but louder or do you want to increase its distortion or use it to mix up a new sound ???
The Baby Pink Booster (buffered) is great at just making it louder after the Drive or pushing it to more distortion before it.....
the Rooster Booster (unbuffered) will push it even farther and add some upper mids and sparkle ....
the Sea Blue EQ (Unbuffered) is a great booster and gives control of the treble and bass freqs too
and yes the Little Green Wonder makes a great clean boost and you can accentuate this ability by swapping in a Tl082 or 072 chip (this is the only BJF pedal that uses a chip btw) and the body control gives useful EQ adjustments to this stack...
and of course guitar/pickups hands amp/speakers always affects this too..... many variables many solutions......