Both are seen by their followers as new age Messiahs (although in Winston's case insert 'old' before 'new').
Both leaders disregard conventional norms.
Both require unquestioning obedience of their acolytes.
Both are a cult.
Both exhibit scant regard to financial ethics (one rorts the State; the other rorts its followers).
Both would sell their grandmothers to achieve/retain power.
Both are wedded to 'do as I say' rather than 'do as I do'.
Need I go on?
And sometime in the future (soon) both will disappear into the dustbin of history as their supporters realise the emperor is indeed stark bollocking naked.