#1 is still my favorite out of all of them. I like the chunky little boxes, and having two items per line makes it feel more like a notebook and less like an inventory screen. I don't think the abbreviations are a problem at all - RPGs have abbreviated long item names since the dawn of time, and again, it looks more like a notebook! Putting the full name of the item on the right side page, either as "-kitchen knife-" or whatever in the header, or simply in the description erases any ambiguity, anyway.
The rest don't feel as satisfying to look at to me. I think those boxed items look really nice!