the Orthodox and the Catholics share: faith in the real presence of Christ in the Eucharistic bread and wine (something that protestants lack)
I'm culturally protestant (though officially agnostic). Growing up I was told by my mother to answer "methodist" when asked about religion (which they used to do in school).
The viral video on different denominations I have to say the Methodists (with their emphasis on faith as a tool to become a better person through good works) is maybe the closest to my personal ethics.
On the other hand the closest things I've had to religious experiences were both in Catholic churches (one in Oaxaca Mexico, one in Malta) in both cases I was still processing deaths (in one case a relative in another the spouse of a close work friend) and that may have had something to do with it. I glimpsed some of what the faithful probably feel...
I've been in three types of orthodox churches (Poland, Greek, Bulgarian, Romanian) and I like the imagery but dont get the rites....
I visited an Armenian church (in Bulgaria) and it was... very weird, very distinct from Bulgarian orthodox churches).
I also find a lot of African American gospel music to be very uplifting... a very different tradition but one that speaks to me....
youtube.com/watch?v=w2YlkpLGkSg