I have a ratsnake and I really love and enjoy her curious nature (very similar to corn snakes from what I understand).She won't cuddle for long though. My second snake was a Ball Python, and although it's taken some learning to adjust to his finicky feeding habits, humidiy needs, etc. he is a very wonderful second snake. He is a cuddler, and he's the one I have on my lap while watching TV. It's nice to have that balance of an active snake and a mellow snake.
If I were going to get another snake (which I am not at this time . .) it would be a hognose. I've heard they have a mild venom but they don't bite often, if you handle them with respect and raise them from very small. They just seem like really neat (and cute!) snakes full of personality but not too huge to become difficult house and care for.