We rented a macro lens a few weeks ago so I played around with our rings. They're sitting in a bowl of brown rice, we didn't have anything nearby that was more pretty that would actually hold the rings up.
My ring is a 4 prong set with a half eternity band and pave diamonds all on the sides (like the flat side that people don't see). Both bands are shared setting full eternity bands.
This is how I wear it, with the two bands sandwiching the engagement ring. If you are looking for engagement/wedding rings and want two bands like me, I suggest going the route that I did and have the engagement ring be half eternity so that the three rings aren't so squished on the bottom side of your finger. It makes it a lot more comfortable. I also suggest going up a .5 size for all 3 rings so they all sit on your finger comfortably as it does get a bit tighter with the 3 bands.
(can you tell what it's sitting on? My blue Dior heels!)
Sometimes I play around with my rings and just wear the two bands on my left hand and the engagement ring on my right hand or vice versa or just one band with my engagement ring. It's kind of fun to mix things up but mainly I wear it with the 3 stacked on top of each other. A lot of people are curious about my two bands and why I got them but really no reason, just that we think it balances out nicely.
Anyway, not the most exciting post but there you go, that's what I wear on my finger every day!