Fractal Design Define R4 should be roomy enough for most people. I don't see a reason to buy full tower cases unless you have multiple GPU's and a large CPU cooler. If you want a roomier case, consider the top-end, full tower Corsair Obsidian 800D (built for water-cooling). Excellent features and lots of space.
If you want something slightly cheaper and smaller than the 800D, the Corsair Obsidian 650D is a great alternative. These 'D' series are specialised for water cooling. If you're air cooling perhaps consider other cases.