If you had a blank slate what electronics would you install today?
After much sussing I went total Raymarine head to toe.
The main theory being as much as they say all, most these days, brands will chat happily amongst themselves, Microsoft, Oracle, Blaa, Blaa and Blaa also say the same but in reality they do have times when a bitch fight happens and generally the loser is the end user. So having only the one brand means I only have one arse to kick or one motorbike to hold hostage if I have a failure that shouldn't happen as it should all play very nicely together being the same DNA.
I would have gone B&G but they don't have a big auto driver. I did consider B&G all over and the Ray AP but it's not a stretch to think if something was playing up B&G would say 'It's Ray' and Ray would say 'It's B&G' and I didn't want to be the pig in the middle. The same theory with other AP's I sussed, the AP being a big driver of the end decision.
Open CPN and so on is beyond my scope of being able to operate and it relies on a computer, something that isn't a fan of what is effectively a dingy with a 1/2 arsed roof so a pretty moist bash n crash like environment.
One thing I did do after sailing on a small boat with a MFD mounted outside is made sure the one I got had knobs and buttons. The other one was pure touch screen only and on a small jumpy boat when it's wet it was near impossible to operate well and at times in heavy rain we just had to gave up. So mine is touch screen but also has knobs I can turn, buttons I can push for wet jumpy situations. Note we are talking a light 30fter so heavier or larger that may not be the problem it's is fore us little fellas.
I considered WIFI but the weight of wire used is bugger all and wire is far more reliable, comment based on assorted small but still very annoying niggles with many things WIFI. Also for me wire is traceable so if I have an issue I can track wires around on the chance I may find something. I haven't the faintest idea what a Whiffy (the things that fly around inside WIFI) looks like so any failure would only get a blank stare.
As IT said it is very much horses for courses so I'd suggest you start by saying 'I dont want.....' and then see what's left and speak to IT. He does play with all the options so I'm sure is more than capable of telling you where you are wrong
Edit, I do think B&G's MFD software is the better option if you plan to race. Ray is OK though....and certainly can make my starts any worse then they already are.