Bassar v'Yayin

Question

Is one required to have meat and wine on Yom Tov to be yotzay simchas yom tov- meaning that if I like chicken and snapple more than steak and wine should I take the steak and wine anyway? Also, if you have a choice of having a fleishig meal on the first day or second day, should you have it on the first since simchas yom tov is deoraita that day?