To each their own. I say go to Cabela's or BassPro or wherever and try a bunch on and buy one you like. Try it out for a year or whatever and if you don't like it sell it.
Personally I tried the vest for a year or so and hated it. Didn't like how most of the weight was in the front. Gave me a sore back. It just generally felt bulky and uncomfortable. Also since the vest is not waterproof if fishing in the rain all your little containers of this and that are wet on the outside, and when you get home the vest is soaked and needs to be dried out. On the plus side I did like all the cargo room and as others have stated if you get the kind with the big pocket in the back you can stuff several fish in there and it's easy to carry compared to in your hand(s) while trying to carry your rod as well.
The system that works for me is a good fishing jacket with lot of pockets. I have a Simms G3 Guide. In the big rear pocket are all my garbage bags and zip locks bags for transporting fish and roe from a fresh kill. In the front cargo pockets I keep bait in one pocket and water bottle in the other. I have one of those Platapus water bottles that is like a water bladder (500ml). It's nice as it folds up flat when empty. If it's a hot day and I think I'll need more than 500ml of water I'll wear a small camel back pack that holds a 2L bladder. Phone and a bit of other small gear goes in inside jacket pocket or front pocket on my waders.
All of my other crap goes in a water proof waist pack. I have the Patagonia Stormfront. Mine is an older model and does not have the extra exterior zipper pocket. Good things about the pack are it's 100% water proof and submergible. Everything stays bone dry. It's also comfortable and you don't really even notice you are wearing it. Down sides are I have mine fairly full and sometimes it's hard to find what you're looking for! It does not have much for internal organization. I have thought about buying a non waterproof one with more pockets/compartments for fair weather fishing but have never bothered to shop for one. The hip pack does force you to go through your gear and think what do I REALLY need to bring for a day on the river.
I don't carry much food on me. Usually just some small high energy food. Jerky and cheese, mixed nuts, power bar, etc. I try and have a good breakfast and get by nibbling throughout the day. Typically if the fishing is good I'll forget to eat and/or drink water lol!!!!
By all means try a vest but I would buy in store and make sure you like the fit.