I don't think any "laser" should be gauged by its effectiveness against a Battlesuit. A laserbazooka - or a blaster cannon, as I call it - is still a laser, and a Battlesuit is very resistant against them, unlike the kinetic/electric combo of the PSL, or the kinetic/raw energy blast of the PEW.
If the blaster cannon can one-shot a Battlesuit reliably with its 3-token shot, it is going to wreck unholy amounts of hell on any non-laser-resistant target, that both the PSL and the PEW will struggle to match.
True, but those things wouldn't need 3 darn tokens per shot of it.
Consider the amount of
laser power needed, to take out a mech that can withstand a
nuke, and is specifically
resistant to lasers, in one shot. Consider what will happen if that energy gets deposited into something softer than that.
A PSL gets 23 shots per 3 tokens. That's 23 small craters in rock, and enough firepower to destroy a small mechanized platoon, or significantly damage a single large building.
A PEW gets 2 shots per 3 tokens. It will make two fairly small, but very long holes in any regular terrain, enough to damage a number of buildings in a line, or sink a pair of very unlucky navy ships.
The blaster cannon would be delivering a small nuke's worth of thermal energy into a small area, instantaneously. Which would proceed to cause an explosion, because that energy has to go somewhere. It would utterly destroy any surface building. It could level a city block with one shot, in the right circumstances. It could destroy a small army with that as well, if heat insulation weren't so ubiquitous, though the resulting shockwave should be plenty destructive on its own.
Don't sell it short, Radio. The blaster cannon can be a very destructive weapon as designed.