Absolutely agree with buying different types and seeing what works for you.
I'm really liking pockets (Rumparooz and Thirsties duo) now, but just at the beginning I liked teenyfits and sandies, with a Nature Babies wrap. At night we use bimbles (nappy lady sells them, or you can get them directly from easy peasy nappies) with wool shorties, usually - I find anything bamboo just takes forever to dry, but that won't matter so much in summer, or if you have a tumble drier. We also occasionally use folded terry nappies too (I think it's called the bat-wing fold, where you start by folding into quarters, then pull out a corner, then turn it over and fold the middle bit into 3...) and might use them more when Junior get a bit bigger. Not hard as long as you have the nappy folded in advance (you said you were a planner!) They have the advantage of being really quick to dry.
The first website I came across when I started looking at all this was kittykins, and they have a short quiz you can do to find out what might suit you - obviously suggesting a selection of what they sell(!) and another to work out how many you will need.
It about IS trial and error at the beginning, but like you, I started buying up a variety of nappies way in advance, lots of them in sales / pre-loved from the classifieds here, and have actually quite enjoyed finding out all about them. Oh, and the only disposable he's ever worn was the one they put on him in the hospital
My tip for meconium is to put a bit of vaseline on their skin, so it doesn't stick, and catch as much as you can in a paper liner.
Plus although I got a bucket, I've only used it for washing / lanolising stuff. Nappies have gone into a wet bag (we have a couple), and then into the machine. You can punch the bag inside out, or just bung it into the machine open, so no handling of wet/dirty nappies required.