The Welshman helped Real secure the Champions League last season and will link up with James Rodriguez, who completed a £63m ($107 million) move to the Bernabeu this week after some impressive displays for Colombia in the World Cup.
Bale learned his trade in the Premier League, proving his worth during spells at Southampton and Tottenham before joining Real in a record-breaking £85.3m ($145 million) switch last September.
He faces Barcelona's top stars such as Lionel Messi, Xavi, Neymar and Iniesta on a regular basis and feels the best talent has been lured to La Liga.
"For me I think the Spanish league is the most exciting," he said. "It has the world's top players there. Barcelona, Real Madrid are always in the Champions League, either winning it or going very close.
"The Premier League is a great league. I think it's very close, but I think we are attracting the best players now to La Liga and it's making it more exciting and it's great to be involved in it."
Bale is also excited about Madrid's prospects for the upcoming season as they prepare for the International Champions Cup in the USA.
"We enter six competitions and we want to win every one," he said. "That would be amazing. We are hungrier than ever.