beam divergence,beam diameter

Hi,

I'm will buy a laser in the near future and don't know which one has the best quality so please chooe one of those consider the beam divergence, - diameter and duty ciycle.

Edit:
I want all features like burning, popping, stinging. Only looking for 532nm and pen style. There is a poll above.

A little more info would be helpful.
What wavelength, power, host style, etc. are you looking for.
There are a LOT of options out there.

can i ask you choose opto?