I like the original She's A Woman. May be one of my favorites of early Beatles stuff. Good gritty Paul vocal and slightly heavier guitars for them for the time. Lot of energy. I'm Down is silly and a 3rd rate Little Richard impression.
Yes It Is and This Boy are both nice. I always preferred "Yes It Is" too. There was an early version on Anthology with just John on vocals instead of the harmonizing that I always preferred to the original version on Past Masters.