I think Spanish and Italian are similarly 'musical'. Russian fascinates me. Especially how it's written. Their letters/ characters look like those old school space invader graphics to me. Really cool.
I actually hate my own accent and the way my voice sounds. It's originally a borough of London (not wanting to be specific.) Moving about hasn't seemed to change it. I cringe when my voice has been recorded and played back to me.
I'm amazed by how accents vary enormously within a relatively small area. I do find some languages and accents grating to listen to but, I wouldn't like to say which because, I'm sure they're thinking the same about mine! We can't exactly help how we speak- without enormous effort I imagine.
I've had a lot of crushes on male actors in large part to how their voice sounds. I'm not keen on the idea of posh people (I have a weird envious bias I guess) but, I do love a cultured, rich voice.
I also find some accents very calming. I remember my computer went nuts years ago. I was on the phone for ages with this lovely tech support, Irish woman. Asides from her patient and calm response, I was so grateful for her soothing accent. I also find that certain accents remind me of people I like so, that can make me like the accent. I find it kind of weird that there's English speakers with a Welsh/ Irish accent and then, there are also the Cymraeg, Gaeilge and Gaelic languages.
As much as I hate my own voice, I do find it comforting to hear people talk with a similar accent to mine. A sort of fond nostalgia for my origins.