MS is the best F1 driver there has ever been (technically its a fact with the records he has achieved etc), regardless of what people think of him, I'm not that keen on him, and the things he's done
but you can not disregard facts
Actually you can.
MS is the most successful F1 driver of all time, that is unarguable. However 'successful' and 'Best' are not the same thing, necessarily.
Had Senna not been killed,he would undoubtably have won more world titles, probably taking them from Schumacher in 1994 and 95 (The Williams was a superior car to the Benneton, no doubt about it.) Had that occured and the Scumacher still won his Ferrari titles, they'd have had 5 championships a piece. Senna would have earned more poles and race wins than his shortened career already had given him. Who'd have been the 'best' then?
Modern F1 cars are very different beasts to those driven by Villeneuve, Moss, Fangio, Stewart, Surtees, Brabham and any other great of the sport that you care to mention. How would Schumacher have fared against those greats, in their equipment? Or how would fangio have compared to Schumacher in a 21st century Ferrari?
the term 'best' is at most an opinion as far as F1 is concerend, because different generations are incomparible, such is the march of technology.
Scumacher was the most successful, yes. But 'Best'? Arguable indeed.