I have only just seen this thread.... I was away on tour when it was started (carrying my waterproofs the entire time and not needing them once!) I personally have not found a single cycling waterproof top that keeps me totally dry. Having been there and done that numerous times (as have many others) I came to the conclusion that cycling specific waterproof tops were not up to the task for when we went off around the world. Off tour, I am quite happy to use my cycling waterproof top and get damp (sometimes soaked to the skin in torrential rain) but it is a totally different matter when camping wild without the ability to dry kit, day after day....
Instead we went over to our mountaineering waterproofs which have never let us down even with the worst that the far north of Norway threw at us (and it was bad...) I use an Arc'teryx mountaineering waterproof with pit zips and very few pockets, which are not used. I can't remember the make my OH uses, but he has recently replaced it with a RAB jacket which I am not overly impressed with. I have had all sorts of fabric types over the years including some ceramic ones which needed periodic drying and reactivating and have had several failures (including a life threatening situation in the highlands which resulted in hypothermia after a goretex jacket categorically failed on me.) I am back with a goretex one now which is +4 years old. I don't mind having paid a lot for it - it has done a lot, been a very long way and not let me down.
Yes my mountaineering waterproof top have a hood - and yes, when the weather is
that bad, it is necessary to use it otherwise there is this big hole at the top of the waterproof that lets water in! Rather like shoes being at the bottom of waterproof trousers and filling with water... The hood is designed to go over a caving helmet (or under) and works well with a cycling helmet and does not restrict head movement - though between you and me when life is that bad there is the thought that a helmet is pointless and it usually finds its way onto the rack rather than my head. It does restrict your ability to hear, but then so does torrential rain all day long and when it lasts for 2-3 days without ever stopping you become exceptionally grateful for hood not to mention something you can trust... I also use a scarf/thin travel towel around my neck to catch what has run down my face from that tiny bit of skin that is always exposed... it works really well.
but then I also use waterproof cycling trousers when the weather gets really bad - and hate wet feet so have modified my waterproof cycling trousers to stay over my shoes and not ride up...
anyhow, that is my 2p's worth and thoughts on the matter....