I like night personally. I don't play with my gamma, and I don't have trouble fighting. Sometimes I have trouble finding people to fight, especially if dar happens to be down also.
I'd like to see night fleshed out a lot- changing and/or dropping icons for 'day fighters', and adding dedicated night fighters- there were plenty of them. We could even have several without much modification at all- the Boston was a night fighter, the Mosquito, the Ju88 and the Bf110, the F6F-5N and the F4U (don't remember the varient, but it operated with the Marines and one Navy squadron off of some escort carrier). All of the fighters listed above had radar, so I'd say let them keep icons, and let the 'day fighters' keep dar but no icons. Model stuff like flame from exhaust, landing lights, searchlights, etc. and it could be a totally different experience than flying in the MA during the day.