4e's grid system still strikes me as being abstract. With the way that diagonal movement is defined, things tend to end up falling into rather loose bands of ranges, either "next to you", "close" (around 1 move action away), "medium" (within charging distance), etc. I find the grid combat in 4e to be a much more fluid and cinematic "fuzzy space" than 3e's rigidly measured 5-15-20 counting and 20-foot burst patterns and so forth.