Kevin Brown says he has joined Widnes because he is “excited” by their plans.
Brown, 27, will leave Huddersfield at the end of the year to start a four-year deal at the Stobart Stadium in a surprise move.
He said: “The main reason is family. My nan had cancer last year and I’ve just had a kid and realised how important family are.
“This opportunity came up and I couldn’t turn it down. I spoke to the board at the start of the year and told them I was missing the family. At first I was going to move back and travel to Huddersfield but a couple of clubs came in.
“Wigan was an option. I spoke to them but I’m more than happy with the choice I’ve made.
“I know what the coach is all about. I’ve worked with Denis Betts before and he’s a fantastic coach. Obviously at the moment, they’re struggling on the field.
“But I met (chairman) Steve O’Connor and he’s one of the main reasons I’m going there. People ask ‘Why Widnes?’ but I know the ambition they’ve got. Their plans for the next three years are very exciting.
“I remember when I first came to Huddersfield (in 2006) I wasn’t too keen.
“But we’ve got stronger and stronger since then, and I now regard it as the best move I ever made. I hope it’ll be the same at Widnes.”
A product of the Wigan academy system, Brown moved to the Giants in a season where they finished 9th in the Super League table.
He has since become captain at the Galpharm Stadium, and helped them to three consecutive play-off finishes and a Challenge Cup final in 2009.
Widnes have struggled in their first season back in the top flight, winning just two games.