You need something heavier than the little edge mounted ones and so for all areas where you plan on using pulls, I would select the same pull, making it a good sized one.

Doors usually open into a room you are entering. Only exception is front door which opens toward you.

I have not heard anything bad about having doors that open from any direction of the house and as you have not confirmed which country you live in I can not even predict where the worst of the winds would come from. I live in NZ and my front door faces North West. Where I live that is the worst / strongest winds that we have so the only negative for me is on a story day I might be blown down the steps or the rain might soak me as I try to unlock the door. I have simply eliminated what I can by adding a glass roof above my front deck. My back door faces south east and again the weather was and is the only problem so I enclosed this area with a porch which allows me to have the door open most days, almost all year round. NZ's bad weather comes from the south and the sun is in the North. If you are also in a similar location / southern hemisphere then your plan shows me your house is perfectly positioned for the best of the sun. I think you have absolutely nothing to worry about. Don't listen to negative comments make the most of what you have and if you need to make small adjustments for wind, rain or too much sun. ENJOY YOURSELF AND YOUR NEW HOME.

I've always just used brute force , and a Stilson spanner -- that may be a brand , but they are a larger specialist plumbers spanner with big grippy grooves . The handle is about 45cm long -- if thats not enough , a heavy-wall water pipe fits over that , so you can go 2 metres or more , which gives heaps of leverage .