I’ll also agree with MerryMagdalen. As long as I don’t have to stay there, I’ll be glad to visit many times in history. However, if I have to live out the rest of my days there, I’d much rather stay home.
Especially for us women! 
I’ve got to go with the flow and say I’d like to* visit* the past, but would always choose to live permanently now. I like open heart surgery, thank to it I have a father. If it had been an option in the 1930’s my father might have grown up with his own father. I like antibiotics, pain medication, and modern operating rooms in general, thanks to them I am alive.
I especially like air conditioning, refrigerators, and indoor plumbing. It’s not that I couldn’t live without them, it’s just I wouldn’t want to. My maternal grandmother, still with us at the age of 100, doesn’t pine for the past either, except she misses some relatives. Once, in her eighties, she told me, in a joking fashion, that modern household appliances were “God’s belated apology to women, and the least we deserve!” 
May have been, but it sure as hell doesn’t beat running water and 2,000 square foot homes with central air.
The mid to late nineties, so long as I can take a a couple dozen almanacs and compendiums with me.
Well, as long as I am fantasizing, let me hook-up the cross-time funtional cell-phone belonging to Rose, of the show Doctor Who, to my computer, so I can record tv shows, and upload them to the internet, so that none ever need suffer low quality, traded by mail episodes of Beetlejuice, or Jayce and the Wheeled Warriors.
The toys, the music, and the tv shows were all better today. Well, except perhaps for the dramas, but I don’t care about that.
Hell, even with out my computer, I would go back in time, though I would still archive as much pop-culture as I could. Also, I would kill Sarah Conner,(Wrong era, Whoops.) and make damn sure that Thomas Dolby released the same version of his albums on Cd as he did on cassette.
I don’t want to live in any era that doesn’t have birth control pills. I wouldn’t mind visiting though.
I would. I’d go back and live right here, where I am now, but before Christopher Columbus came to what is now the U.S.
Abundant game, plenty of water, beautiful country - perfect. sigh.
Well, I would like to bring my Hubby with me. 
Paris – The Twenties
Me, too…as a writer or painter. Très cool! 
How did I do that?
I nice house in the Bronx in the late 1920s.