With other things remaining the same, physical size, personality, ethnicity no, my life would be much worse as a man. I don't really have any penis envy even though I have joked about it. I am content with my gender and I believe I have advantages in life that many men don't. Like those mentioned by @squark
Plus I don't want three vulnerable little dangly things hanging off my body. I would feel like I had to protect them constantly especially the parts barely holding on by skin (mostly).
In the future, maybe but not now. People are not as accepting on the inside as they want to appear are on the outside, if you know what I mean (jeez please do not read that in an @End's tone lol).