Such interesting responses! I didn't think there were so many bootcut wearers left. I wear a lot of denim silhouettes, but primarily I like very skinny and baggy flared I do not wear "proper" bootcuts any more, and officially purged them all from my closet about 1.5 years ago after realizing I wasn't really wearing them.
I have come to the realization that I do not like slim straight legs on me. Primarily because they look like a baby bootcut, and I like my flared hems FLARED I have one pair of "straight" jeans (i.e. baby boots on me, #1) that I always think "skinnies would be better", but they were my only slim blue jean until this weekend (I don't wear traditional blue skinnies). I have two pairs of baggy flared jeans (#2 faded BF flares, #3 darker baggy flares); I think these hems are too wide to be considered boot cuts, and because they are so baggy certainly do NOT give the same vibe as proper bootcuts, though the darker pair is still very leg lengthening. And of course I have my VERY wide leg flared jeans (#4).
I like my skinnies to be very tapered (#5, #6), and generally on the body-con side (few of them are right now, though). For BF jeans, I did struggle with the authenticity aspect and as you know stole a pair of my husband's jeans (#7). Which I love, but he hates them on me so I can't wear them on the weekend! So I just bought a relaxed slim jean (#8) to be worn BF style in the outfits I'd have wanted straights, and my "baby boot" straights will probably be demoted to gear. In the future I plan to either avoid or taper any straight leg jeans or pants I acquire!
(EDIT: Not sure why I was thinking only of denim! I seem to like my trousers to fit the same way: no straights, very skinny skinnies or relaxed skinny with tapered hems, and wiiiiide if they're wide. I do not seem to like flared or bootcut trousers though. And of course my pleated slouchy pants I couldn't wear in denim fabrications )