#1
I own a Gibson LP and I am planning on playing Mr. Brightside live in an assembly hall. It is kind of difficult to play the main riff on the LP since it is high on the neck, but I have become pretty good at it. However, my friend owns a Fender Strat and would let me borrow it for the concert. Though I am fairly confident i can play the song well on a LP, is it worth sacrificing the LP's tone (which is more like the song) for the security of the Strat?
Gear:
Gibson Vintage Mahogany LP
Line 6 Echo Park
Peavey Classic 30
Seagull Entourage Mini Jumbo
Vox V847A Wahwah pedal
#2
Play whichever one you feel more comfortable. Les Paul and strat necks are different, and they have different scale lengths
#3
The fact that this bothers you is a pretty good indicator that you're not ready for live performances.

Practice more.
Lost interest.
#5
i think i will just use my LP since i can play it practically perfectly, so I am fussing over nothing, and it sounds better on the LP too.
Gear:
Gibson Vintage Mahogany LP
Line 6 Echo Park
Peavey Classic 30
Seagull Entourage Mini Jumbo
Vox V847A Wahwah pedal