it really does depend on the use you'll have with those.
I have 2 KC's spots mounted on my pillars because i do a lot of offroading at night and they light up nicely everything from 3ft to 25feet height at about 30feet. so i can see trees/rocks...
I changed the bulbs to LEDs for the front fog lights and they're quite powerful for ground levels obstacles.
When my Gobi rack finally shows up, i'm planning on adding Led lights on top of it to cover even more ground.
even an average trail can become extremely challenging in pitch black.
however if it's for looks, i think mounting to the bull bar is always a nice way to show them.
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