Im about 70-30, I hike alone most of the time but will sometimes take my girlfreind, she is a good hiking companion and doesent slow me down, we talk sometimes but can walk in scilence for hours, without it being awkward, especially if we are both into the hike. she is not as facinated as I am with nature and will get bored of wathching a bird or animal but will usually humor me. I find that I can really only take her to places I have hiked before, or on really easy trails, as any rout finding or backtracking she considers being "lost" and gets worried.
I have tried hiking with other freinds, that doesent work that well, ones in worse condition than me often mess up my hike by slowing me down, and ones in better condition make me feel rushed through the woods.
The only way I usually do it is for multi day hikes and then, we have a pre planned schedule, and we all agree to camp at a certain spot and go our own pace during the day. This is actually really nice as you can enjoy your Zen experience that day and compare notes over a campfire, talking about animals seen or things found on the trail etc.