Moving averages, crossovers, bounces, support/resistance etc.

how many traders here use the stratergy to buy when the price bounces off a MA and use it as support and also who uses crossovers.

i just wanted to know what type of MA's are you using and why.

i am using the 20EMA and 50EMA because it seems to work best for me, especially the bounces in trends make me some nice profits, crossover with them also work good but they are a bit late