Lineker. The number of times he bailed that side out was unbelievable and that goal against the Hermans in 1990, pure class.
Also for his quote after knocking 4 past Spain in 1987, the question was something along the lines of how can you go back to playing for a Spanish side after destroying our national team and his answer was, I do not play for a Spanish team, I play for a Catalonian side.
I was not around in the sixtys and seventys so can't comment on greats such as Greaves and Mathews. But the best England striker I have seen is Lineker.