When I used Novolog in a pump, the infusion site would swell, get red and irritaited, producing a "pump bump." I switched to another insulin (Apidra) and the pump bumps disappeared. Apparently I am allergic to Novolog. I believe these pump bumps impaired insulin absorption. I've read other reports similar to mine.
It's been so long since I've used Humalog, I can't remember anything remarkable about it. I would, however, use the fastest (onset, peak, and duration) insulin available. Unless you're dealing with significant delayed digestion (gastroparesis), then the fastest insulin is usually the best.