Hi Nick,
I'll take a crack at it.
In my opinion I would go with either a back inflate BC or a backplate/wing. These are the types I prefer and have used.
If you want an opinion on jacket type BC's read up one those for the merits of that style. I have no opinion of value on jacket BC's, since I've never dove with one.
What I liked about back inflate BC's were the fact that they were more streamlined, meaning, less bulky. I didn't want pockets or other features added to the BC, I was looking for the cleanest design.
I have owned both a Mares Icon back inflate and a Scubapro Knighthawk back inflate. They both were really good BC's, I can't say that one was better than the other. There were more similarities than differences between the two.
The Oceanic excursion is very similar to these two. The Zeagle back inflates seem to be very good, I've had a chance to check them out as well. They use a different system for ditchable weight pockets.
You would have to do a search on those to get opinions on the Zeagle BC's, I've never dove one, but when I was able to check one out it did seem to be of very high quality.
What I currently own is a Deep sea supply LCD30 backplate/wing. For me it is superior to the other two back inflate BC's I used to own.
The simplicity and lack of clutter were what I was looking for. I felt that the Scubapro Knighthawk was too bulky. I didn't like the cummerband waist band, for example.
For back plate wing styles, there are also more similarities than differences (well, there are some differences) .
Most use a backplate(aluminum, stainless steel, kydex), a harness (HOG or a padded style of some sort) and a wing. Another thing that I liked about going this route was the ability to choose whatever size or shape of wing I wanted.
There are many styles and shapes of wing, and this is one area where the differences lie between the different brands out there.
You can mix and match to meet your needs. In my opinion, this may be part of the appeal for experienced divers in choosing a backplate wing BC. Instead of getting the default size and shape that the BC manufacturer decided to include on their back inflate or jacket BC's,
you get to choose exactly what you want if you decide on a backplate wing. This was one of the factors for me.
Another nice feature is the infinitely adjustable harness if you go with a HOG style harness.
In going with a backplate wing, there are quite a few manufacturers to go with. You can mix and match brands in many cases.
As for me, when I spent my money on mine, I went with the company that I felt had the most well thought out designs.
I chose a DSS, one big reason was their backplate design. It seemed to be very well thought out, this particular plate has molded in rubber inserts which secure the webbing harness as opposed to using the typical tri-glide sliders. It seemed like a cleaner design than most. I have made a few back plates from aluminum and stainless steel, I prefer the DSS. It's a well designed plate.
I also like their wing design, which has a built in "single tank adaptor". I have a couple of different single tank adapters, I prefer the DSS type that's integrated into their center panel.
There are other companies out there which are also good, but I went with the more integrated approach that Deep Sea Supply has designed.
So......My recommendation would be to get a backplate/wing BC.
For what it's worth........
My decision was based on the fact that I am a machinist and an aircraft sheet metal mechanic. As I mentioned, I have made my own backplates and single tank adapters.
For me to spend my money on something that I can make myself to a high standard, it has to be very good.
I was impressed enough with DSS to spend my money on their products.
If you weren't inclined to buy a backplate/wing BC, I'd recommend either a Scubapro Knighthawk (I owned one), or a Zeagle model (I have only checked out but was impressed with), these are both back inflate BC's.
As for a jacket BC, you'd have to ask around. I have no opinion.
-Take care,
Mitch