George Harrison didn't have the quantity of great songs, but he certainly had the quality.
Both those songs are amongst The Beatles greatest.
'While My Guitar Gently Weeps' is brilliant, and 'Here Comes the Sun' is as good as an acoustic song that can be found anywhere.
As for Ringo, amongst both my little Suity's favourite songs are 'Octopus's Garden' and 'Yellow Submarine' both terrific songs in their own right. Ringo did however, produce some better stuff after he left the Beatles.
BTW, the aforementioned 'little Suity's' (aged 6 and 8) love The Beatles, so no doubt, The Beatles will live on forever, just like Tchaicovsky, Beethoven, Mozart, etc.... have done for over 100 years.
Suity