Spurs are at Chelsea tonight in a massive top four decider.
Villas-Boas said: "They have won the biggest competition in European football, and every single trophy they wanted in the last 10 years. They have the most amazing record, so it's very hard to say anything. Sometimes success is what matters in football, independent of style. I think if you don't have a style it makes you invisible.
"What is attractive to me is different from the style of football you might find attractive. We can see the wonderful team Mauricio Pochettino is building at Southampton.
"Southampton is not invisible in terms of their football. Their football has been absolutely outstanding this season."