Bale has been on loan at Spurs all season from Real Madrid, but has spent most of that time on the bench.
The Welshman has recently been more involved in the Premier League, and scored two excellent goals against Burnley in a 4-0 win.
Davies told reporters: "When you have players of his quality, the levels he has reached in the game, whether it be Gareth Bale, Cristiano [Ronaldo], [Lionel] Messi, everyone has a story about them being great now or poor the next day or not reaching the heights they have reached.
"Gareth has had a lot of criticism, probably unjustly, when he was at the top of his form. He is an incredibly tough person to have to deal with some of the stuff he has had to deal with off the field and still perform the way he has throughout his career.
"Even after four Champions Leagues, what he's done for the national team, what he did for Real Madrid, he still gets questioned about his ability. That must be tough to take. I think he deals with it pretty incredibly. He is a terrific footballer and a great bloke."