I like sliding in standard. Mostly cause I'm a lazy bastard who can't be boithered with too many tunings and going back and forth between them. Guitar is a rhythm instrument for me and I use it to accompany my voice. I need to find thje right key to sing in and this is so much easier in standard tuning I think.
And yes, you can
slide, play Freddie Green chords and have fun in any key in standard. That's pretty cool too. But I love the sound of open tunings, especially open D.
If you can't hear the others you're too loud, if you can't hear yourself you've gone deaf