Have the highest play time and promotion (gold 2) on scout, but some time ago begun to enjoy the "no way? I make my own way!" energy of driller. Also often rotate, both dwarves and loadout.
Some fun ones for driller
-sticky flames for area denial
-vampire and barbed drill for the freeze gun
-slowdown build on the sludge gun for dreadnought fights
ummmm achchuly what you are thinking is betacam, not betamax. Betamax was only marginally better than vhs while being more expensive because it has a smaller casette/tape. The professional use betacam came later than the whole betamax vs vhs.