In a way the comparing of the two isn't a fair one. The Lee-Enfield ( SMLE thru No 4 Mk 2 ) is one of the finest bolt action military rifles produced whereas the SKS is a semi-automatic carbine designed to put out fire in volume and at relatively short range. The manufacturing tolerances of an SKS are poorer than even the Lee-Enfields that were produced in wartime and simply cannot compare to the, primarily hand-made, SMLE or the post-WW II No4 Mk2.
I own half a dozen Lee-Enfield's of various vintages and two Tula SKS's and enjoy them all, but comparing them is, to be honest, a little pointless and a bit like comparing two current but different military firearms ( say, an AR to a TRG ) one isn't better than the other, they just do different things.