Just want to find out how the community feels and what is prefferred.
I think its fair to say that a large proportion of individuals growing don't understand or appreciate these genetic subtleties. Regardless, I think its more important to pick what works for YOU and your exact needs and circumstances than worry about what the "community" prefers.
IMO, what's "best" depends entirely on what you're individual goals and limitations are.
-How much experience do you have growing?
-Are you growing indoors or outdoors?
-If outdoors, are you in a geographic location where a landrace strain might be appropriate?
-Are you growing for yourself or others?
-Are you growing commercially?
-How many plants can you grow at once?
-Do you have the ability to source high end clone plants?
-Do you have the ability and desire to maintain "mother" plants, or keep "keeper" plants?, or are you growing from se-ed every single time?
-Do you have the ability and desire to do selections from many to identify high quality individual plants? The flip side of this question is, can you "afford" to take chances with plants that could be lousy or even just mediocre?
Without exploring every possibility here, I'll just comment on a few.
If you have the ability to start with select or "elite" clones, that can be a great choice. Those plants are guaranteed to be female, and most of the hard work in finding excellent individual genetics is done. In some cases, you may even be able to sample the buds before growing the plant! It doesn't really matter that these plants are "unstable" hybrids, because you're not breeding with them, nor growing siblings from a pack of se-eds. All you have to do is grow the thing to its full potential.
As a matter of practice, commercial breeders virtually never start with se-eds. They're either starting with cuts of "elite" clones, or at least cuts of excellent plants they've selected themselves (perhaps from se-eds). In general, the needs of commercial growers are a little different than small home growers, and strain selection is going to be different. (EG yield is a huge factor for commercial grows, it may not be a factor at all for small personal growers).
If you have the ability and desire to grow numbers and do some selection, then starting with S1s or polyhybrids can be fine. You may need to run through a number of plants to find a good one, but you can find really great and interesting plants this way.
Now, lets consider a small personal indoor grower with limited floor space and vertical height. This person can only grow maybe 1-3 plants at once, and doesn't want to maintain a "mother" plant. They lack the ability OR desire to try and grow out 4-6-10 plants from a strain and do selections to find a great "keeper". They also probably don't want anything that stretches too much, or takes more than 10-12 weeks to finish flowering.
So someone like this is generally going to want to avoid F2s, polyhybrid plants, and S1s. These just aren't consistent, and variable phenos and flowering types can mean a negative experience with bad individual plants, just by dumb luck. Most landraces are long flowering sativas, and those are out.
Someone like this is going to want either a landrace indica (which can work well indoors), or a good F1 hybrid, or an IBL bred for indoor growth. Lines that have been "worked" out to f4-f5s are probably fine too. These won't be entirely stable, but they should be "good enough".