The Spanish midfielder will leave City at the end of this season.
In a tribute published in David Silva: El Mago, a new book celebrating Silva's career in Manchester, Bell's tribute reads: “David Silva would walk into any City team. He is in my personal greatest all-time XI and is just fantastic to watch.
"When he's on the ball, he makes the whole team tick and we don't look the same side without him. He has an incredible awareness and is the perfect player for the modern game.
“People ask me how I rate him compared to the players who played during my era and he's up there with the very best."