Best of Both.

Funerals mean so many things to so many people.  The dictionary tells me it's a ceremony after a person has died.  No mention of religion or format.
I was surprised that when Lemmy died (singer from Motorhead), he had a very public funeral that was actually streamed live in t'internet.  Bit odd that, to me.  It was even in a church.
Conversely, David Bowie has been cremated without any pomp and ceremony, without any family of friends to 'see him off'.  This seems to be equally as odd, but I can see why both of them chose those options.  At least I assume they chose them, you have very little say when you have breathed your last, relying on your wishes being carried out as requested.
I rather like the David Bowie option, some anonymous 'dead person collecting service' simply calling round after a phone call, wrapping you up in a sheet and setting fire to you.  Not at home, obviously.

Mind you, I can understand Lemmy wanting to go with a fanfare, guitar riff or similar.  It was his last chance to make a scene.

I think I would like a low key, understated funeral, but with some memorable bits.