Blokhin isn't ideally suited to be a main goalscorer imo. During his prime he was prolific in the generic 1 in 2 sense, which was great considering how much he offered outside of the box (not easy in low scoring defensive soviet league), but that rate was because of his great movement, workrate, pace and dribbling. His actual finishing was inconsistent and he had endured no small amount of criticism for it while carrying the expectation and burden of primary goalscorer for Kyiv/NT...somewhat unluckily due to the drought of prolific traditional 9s in '70s/early 80s Soviet football. Opinions vary overall, but if you hear older guys who watched enough of both talking about how they think Shevchenko is the greater player, 99% of the time it's because they thought Blokhin was too wasteful.