That honor goes to my CNI 80mw (rated but does 105 regularly and up to 120 after warmup) 589. Four of my most expensive are shown in this pic.
2013-07-11_12-26-27am by ltkernelpanic, on Flickr
L-R: 543.5 HeNe, 594.1 HeNe, jet lasers 100mw 473, multiline argon main beam dominated by the...