Why at Madrid? He had 2 good years and won 1 league title, given your illustrious history, others have been more prolific, won more, stayed longer etc.
I saw 2 previous shouts for R9, i'll also add to that. Played for Madrid, Barcelona, AC and Inter Milan. Great player, but I don't think he would be a club legend at any of those clubs.
Garnacho is a curiosity. His trapping and 1st touch is poor, but his technical dribbling is good, until he has to make a final decision, then he turns into bambi.