I have Proton and battery door are very bad quality.Also,there are many complaints for Smoant's screen quality-check their FB page.Don't know about the other two you are suggestung but those two are not worth money.Except look,bad choice.
		
		
	 
For me, the Innokin Proton is a great 
mod, but for me it's an around the house vape.  The joystick control makes it a poor choice for pock carry.  Sure, you can lock or unlock the mod by pressing right joystick and fire bar before and after taking a hit, but I'd rather see buttons and controls recessed so that things don't change in a pocket.  It's fine in a jacket or shirt pocket, but not so much in a pants pocket, especially if you are driving or sitting.