42" for a one-person work aisle 48" if two or more people will be working in the aisle 36" is for walkway, not a work aisle And remember that aisles are measured to/from the items that stick out into the aisle the farthest. In your case, the refrigerator on one work aisle and the range on the other work aisle. The aisle behind the island is a walkway because there are no workspaces, appliances, or cabinets. However, if you plan seating at the island (I don't think you are based on how shallow the island is), then you need at least 44" since traffic will be passing through (48" would be much better). Seating may be problematical for the peninsula idea, depending on what is directly behind the peninsula. If a table, then you need 60" b/w the peninsula and table. If you're open to other ideas (and I think you are), consider some of the suggestions made by others such as Mama Goose, Apple_Pie, HerbFlavor, Marc Colo (!), and others. FYI...counters usually overhang cabinets by 1.5", so the depth of the counters on the perimeter i2 25.5". If you are getting inset, then 25" is the typical depth of counters. That also means the island will most likely be 27"D with standard depth cabinets (24"). Consider shallower cabinets in the island to gain more aisle space. E.g., 21"D cabinets will gain you 3", 18"D will gain 6".

I get them really bad in my upper leg between my knee and my thigh. Or my toes. The cramps on the upper leg are the absolute worst! It runs the entire top of my leg on the inside and getting up to walk it off is almost impossible. And even when I do finally get up, it can take a good five minutes before I can relax. I usually go to the fridge and pour an ounce of pickle juice and a glass of warm water to chase it down. I know I don't drink enough water which is the problem nor do I eat enough bananas.

My hood is dimensionally similar to what OP is thinking about, although quite different in other ways, I have a 48" commercial CaptiveAire hood with side panels, much like this one Captive-Aire Systems, Inc. 3036BD-2-6-4 4ft BD-2 Series Stainless Steel Low Proximity Hood (acitydiscount.com) It is over a 36" range with counters on either side, so there is 6" of counter inside the side panels. The side panels angle back at a 45 degree angle, so while they obstruct movement of a pot from the burners straight to the back part of the counters beyond the side panels, they don't obstruct movement to the front part of the counters. It doesn't feel cramped - there is plenty of room for moving pots, pot handles, etc. The wider your range, the less risk of feeling cramped. If I need to quickly move a pot off a burner, it is much faster and safer to simply slide it to another burner, than to lift it and move it to the counter. In fact, I don't think I've ever had an emergency need to quickly move a pot from burner to counter. If you have 12" of counter on either side of the range, before the side of the hood (you call it the "legs"), I think that will be fine. Presumably the hood interior material will be reasonably heat/flame resistant. The interior of a hood gets greasy, so the hood sides should be some smooth material that is easy to wipe down - tile would work and is also inflammable. If I had a flaming pot of oil, I'd turn off all burners, maybe slide the pot to another burner, and reach for the fire blanket or fire extinguisher. Seems I'd want to keep said flaming pot on the rangetop inside the hood - why would I want to lift a pot of flaming oil, move it through the air, and set it down to burn on an open countertop with flammable stuff around? A hood design like this may also improve capture of heat/effluent a little - which is why I installed the side skirts.

Thanks @hallettco will definitley think about it! I struggle with how a closet via bathroom would work for a couple. @Diana Bier your suggested approach was pretty much my original design. The closet is plenty big as it is and I think the link to the bathroom will be a nice feature that elevates the room. I should have provided some more context. This is a northeast urban core environment with highly paid professionals and some of the premium projects in the area take inspiration from loft-style living and ultra-modern hotel designs where you have things like open bathrooms and open closets, muted tones and natural materials, and minimal ornamentation (e.g., not thick shaker cabinets; not giant wall sconces; not aggressive wall paint colors; not mega moulding; not gold faucets). I took a look at both of your portfolios and your work is nice (the Lafayette project was terrific @hallettco!). But, it seems that you're coming in thinking about a different type of end user.