More light is always good.
My 95 Civic had 135 watt high beams and 80 watt lows. Wonderful!
My dad was driving behind me when we were driving through the mountains going on a ski trip and he said a lit up the whole side of the mountian!
I never had heat problems, but it was a different car. Or maybe I never had problems because I was always going so fast that they never had a chance to get hot.