I don't like his music very much, which (hypocritically) makes it even harder for me to stomach his status as a world peace icon despite being a jealous, wifebeating philanderer with nine children from different women. Lennon was also the latter, but for one thing he apologised for his behaviour later in life and was largely forgiven by those it affected, and for another I don't generally like his 'LOVE AND PEACE' bullshit music anyway, largely preferring his angry shit.
Ideally we would distance ourselves from the people behind the music to appreciate the music regardless, I suppose, which makes it easier for me to like Lennon and loathe Marley.
He has a song or two that I kind of like.