1: Old English Sheepdog mix- Absolutely yes. He was three years old by the time I was born and lived to be almost 14, passing away in the summer of 1991. Pretty low-maintenance except for having to give him a haircut every summer. Very friendly, but also a good watchdog.
2 and 3: Basset Hound- Maybe. Had two of them. Got the first one shortly after the sheepdog mix had passed away and the second one a year later. House training was a major pain in the ass (the second one had issues with it her whole life), but otherwise were a pleasure. The older one died at age 12 in 2003, the younger one passed away at age 13 in 2005.
4: Pembroke Welsh Corgi- Hard to say. My first dog as an adult (the Basset Hounds lived into my adulthood, but I was 11 and 12 when we got them). My now ex-wife purchased him on a whim, ignoring my suggestion to at least do a little research before making such a commitment, particularly when we also had three-month old daughter at the time. Basically all the responsibility for the dog fell into my lap. I tried, but juggling a newborn, a puppy, and work was a bit overwhelming. Nice dog, though I was pretty much the only person he trusted. The marriage didn’t last and I unfortunately wasn’t able to take him with me when I moved out. My ex held on to him for another year or so before giving him away. I hope he ended up having a great life, he surely deserved it
5: Yellow Lab- Absolutely. The only dog I ever got that was full-grown. He was about four years old and was just amazing. Intelligent, loved kids, though not quite as trusting of adults that he didn’t know (his previous owners were a married couple who’d gotten divorced and neither one wanted to have him). Sadly, I only got about five years with him as he passed away after a brief illness a week before Christmas in 2012. It was comforting to know we made the most of our time together.
6: Black Lab- Current dog. Got her a couple months after the Yellow Lab passed away. Color and sex aside, almost an exact replica. Initially wasn’t sure if I wanted another lab so soon after the heartbreak of losing the previous one, but I can’t imagine life without her. She was a little less than three months old when I got her (as it turned out, born about a week before the Yellow Lab died), but house training was a breeze and aside from being a little nippy at times, no other obedience issues.
Though she wasn’t mine, my uncle and grandparents had a Rottweiler in the mid/late 80s to early 90s. I visited often, and she was very friendly and playful with me. She was never quite the same after my grandfather died in May 1992, though, passing away herself about a year and a half later. Based on my experience, I’d have no problem with a Rottweiler of my own.