OK, brace yourself for 100 different responses, a debate on metallurgy, and countless $100 + offerings.
Here's my take.
Mora Bushcraft model, with the 4" blade.
http://www.shop.bushcraftnorthwest.com/product.sc?productId=9&categoryId=2
My experience:
Bought one of these many, many years ago. While it may not be fancy enough to satisfy the real aficionados out there, it's an awesome, practical chore knife. Not tactical (I really hate "tactical" looking stuff these days), more like something you'd find in your Scandinavian Grandma & Grandpa's kitchen drawer. Came plenty sharp. I think the size is great. It cuts tomatoes and spreads butter as well as it carves wood. I find the handle size/shape very comfortable. It's easy to sharpen. You can also carve/customize the handle yourself.
It's cheap enough that you don't have to worry about really using it (I use to use it to cut saltwater bait…you won't see fancy knives doing that), dropping it, etc.
That said, I lost faith, thought I'd try a "better" knife, and picked up an ESEE Izula. While it's a decent knife for what it is, I hate the feel of it compared to the Mora. The blade, in my opinion, is too short for food prep (not long enough to easily slice food) and the handle is short and uncomfortable in the hand.
I've since lost my Mora and I've been using the Izula…but I miss my original.
Will either get another Mora ($12, you can't go wrong) or an Opinel No.10 with corkscrew.
http://www.opiknife.com/proddetail.asp?prod=Opinel-knives-no-10-Corkscrew-picnic&cat=11