#2 Raul
Before Cristiano Ronaldo transferred to the Los Blancos, Raul was the undisputed idol to all Madrid fans. He was their highest ever appearance maker, highest ever goal-scorer, held the record for most goals in the Champions League group stages, the highest number of appearances in European competitions and was consistently one of the best players in the world.
Though Ronaldo has surpassed most of these already, Raul will always hold a special place in the hearts of all their supporters.
Therefore, some may find it surprising that Raul too started his career in Atletico Madrid. He was a part of their youth setup and would have probably continued to play for them had then President Jesus Gil not decided to cancel the football school of Atletico for cost reduction reasons.
He thus ended up signing for Real as a 17-year-old in 1994, and the rest, as they say, is history.