The reason Eric ask is if you are traveling to dive you want a lightweight BC, if you are thinking of going tec then you’ll need something that can handle doubles.
I like Back Plate & Wings (BP&W) because by mixing parts they can do everything. I have a plastic BP for travel with a 22 pound wing and a 6 pound steel BP with a bigger wing for cold water. Both BP’s have holes around the edges for hanging cannister lights, stage bottles, etc. Both BP’s can handle single or double tanks.
I can use the same harness, D-rings and weight pockets on both.
The good/bad thing about BP&W’s is you need to build them your self because the LDS will try to sell you what they have in stock.
You might want to go on a road trip to North East Scuba Supply in Norristown Pa. It’s like a hardware store for divers plus they have a nice selection of used gear that has been serviced by them.