i own a m20 premium and quark 123x2 tactical r5.
for the money i would choose the jetbeam over the olight. but i got my olight for $67 shipped. olight beam isnt super smooth, but it is very effective, and has a great tint. its white on max and gets yellower as the settings are lowered.
ive heard the jetbeam throws alittle better than the olight. theres also a smooth reflector for the m20 which makes it throw much better.
the m20 with op reflector throws nice, with nice bright spill. changing modes is easy, it just requires 2 hands.
the quark 123x2 has actually replaced my olight for my job duties as a aircraft mechanic. the quark is a great med and close range light. and with enough throw that is effective for my 70 feet or so range.
the quark has a wide spill which is very useful, and a wide hot spot with the r5 emitter.
the hot spot is white, around the hot spot there is a slight greenish tint (still warmer than blue i guess) and as the spill goes further to its outside edge it gets alittle purplish. even with all the different tints it really is slight and not an issue at all. its also easily carried in my pocket, unlike the m20, but the m20 does come with a very nice holster.
i enjoy the quark so much im looking to get a PD30 as well.
you cant go wrong with the lights youve listed, those are all very good, and im sure youll be satisfied with any of them, i know i would