it sort of comes down to where do you want more light< farther down the trail or up closer to front of atv
or sort of both
a spot beam is more narrower and shines light farther down trail in a tighter pattern, doesn't light up a lot near where its mounted
a flood light, makes a lot of light in a wider pattern, and lights up things closer to atv very well, but lacks down range light due to beam gets wider and looses pattern as distance happens
NOW the COMBO lights, sort of do both, they have flood lights on outer edges and then spot lights in center, getting you sort of both!
BUT remember that there NOT all created the same
the amount of Lumens the lights make, is how bright it will sort of be(again NOT all lights measure the same out put even if listed the same, LED design/quality matters)
and also that how many lumens they make, tend to reflect on how much power they will take to run!
I think a MIN for a noticeable difference will be about 2300 lumens, and the more the better
I just added 3, 3600 Lumens flood lights to the back of my trailer(8.5 ft x 20 ft), for back up lights, and honestly, I wouldn;t mind more light out put LOL
BUT its a different demon than on an atv and on a narrower trail! LOL
I also would recommend wring any LED light to your atv on a separate switch, so, you always have a separate power line to factory lights, as if you ever blow a fuse, you will not be without lights then!