Whatever you choose, it's smart that you aren't in a rush. I'm sure I'm not the only one who has made a purchase that I later regretted due to moving too quickly.
I would add a couple of other notes about your requirements and the companies you have listed.
1. As much as I am a fan of Thedi, I have heard that their HH is on the thinner and/or softer side. I don't think they would fit your needs despite the fact that they are generally great jackets.
2. Schott has quite a lot of leather options. I'm not sure how many of them would actually fit your needs.
3. Aero also has several leather choices. I would imagine that their CXL HH and cowhide would be the only good options, however, I know some even say that Aeros are not the best for actually riding a motorcycle.
4. Do you actually ride? If not, any of these jackets should be able to be passed down and last at least a lifetime regardless of the leathers picked (except lamb or deer possibly.)
Oh man I'd love a Softail.1. I love the look of Thedi jackets but iv heard a little of the same. I'm afraid they might not be the best for someone who actually rides. Its been a while since iv looked into the details for their leather but if i'm not mistaken, the veg tanned leather isn't coated and might not do the best if it gets wet on a long ride. I definitely don't want anything that's going to be thin or more of a casual jacket.
2. I love Schott, I have several leather jackets but my two more high end jackets are both Schott. The two I have now are the 141 cafe racer and the 618 in horse hide. I love both jackets but with the 141 being naked cow hide, is gorgeous and couldn't ask for more for casual wear but when it comes to the elements when on the bike, it soaks up water like a sponge.
The 618 in horse hide is nice too but yet again, isn't has heavy as I would like. Plus i'm more of a cafe racer style guy myself.
3. Aero is a brand I honestly haven't looked into a whole lot. I hear great things but the only reason I haven't looked into them more than I have, Iv heard they have a tendancey to be a little more on the light side as well? Other than that, Id be willing to go that route as well.
4. Oh yeah, I love to ride. I have a Harley Softail. That's why I'm trying to find that one perfect jacket. The jacket that is versatile for all occasions. One that I can put on Saturday morning, ride the bike all day with the guys, come home, shower, and put it back on with a button up shirt and wear casually to dinner with the wife. Then possibly ride the bike to the office Monday morning and wear casually though out the day with dress clothes.
I'm not set on the type of leather either. I just suggest horse hide cause @Monitor and others turned me on to horse hide for the first time a while back when I bought my 618. I do like the versatility of it but I just want to be sure whatever I end up getting, isn't super thin. I have ZERO problem with the patients of having to break in a good quality jacket. If it means i'm going to have wear a jacket for a year or so before it gets fully broke in order to get the best, last a life time, heirloom quality jacket, I'M ALL IN. I take it as a challenge to have something I worked at for years to have that beautiful non store bought distressed look that can only be achieved with years of wear. I'm not one of those guys that wants to buy his jacket already distressed. I want to earn it myself if that makes any sense.
I really like that one a lot too. @Monitor mentioned the v7 earlier and it caught my eye then. I don’t know much about Vanson personally? What makes you guys think Vanson and the v7 a better choice when compared to, say.. LW J-100 and others?