I suppose I have to say this again. A backplate requires a wing. A wing doesn't require a backplate, and many are worn with a soft harness instead.
IMO a jacket BC is easier to use by a newby, and in particular is usually easier to vent. But either can be made to work. Conventional wrap-around BCs may not be as well suited to certain types of diving as a wing configuration, but they can be used for virtually any type of diving. They can be less versatile though. If your BC (either type) fits you in warm water wearing a thin suit or none, then it will need considerable adjustment to enlarge it to accommodate a thick wetsuit or a drysuit in cold water. A well thought-out harness carrying a wing can probably be adjusted to suit both circumstances; a wrap-around probably can't and you'll need another one. If you're wearing a drysuit the last thing you want is a wrap-around BC constricting your breathing. Nonetheless, the vast majority of dives are done each year in jacket-style BCs, which must say something. All the really experienced divers I know who have wing configurations also have wrap-around BCs, and most choose those for simple recreational dives with a single tank.
A backplate makes the whole setup more rigid and predictable on your back. If you're carrying a lot of weight (lots of tanks) you'll probably need one. If you're just carrying a standard manifolded twinset, or even a single tank, you may find a more flexible package more comfortable. It's personal taste.
A stainless-steel backplate weighs a lot, so using one reduces or obviates the need for lead. That can be seen as a good thing, as the weight of the plate is well situated for balance underwater. Viewed another way, you now have a chunk of weight that you can't ditch. In cold water when you're carrying extra weight in the form of lead that probably doesn't matter, but in warm water you may find you don't need any lead, or to put it another way you have no ditchable weight. Whether than matters to you is again a matter of personal judgement.
There backplates made from other lighter materials to which the weight issue above doesn't apply.
And then of course there's sidemount, which is different again and has increasing numbers of adherents, from people at the beginning of their diving to very experienced cave divers.