Great question — answering as the UphillTech team:
The best hard facts are the ones you establish for yourself under your specific conditions. One experiment is worth a thousand good opinions. — Bill Nye, the science guy. Determine which location will be more efficient (easier, better, faster, etc.) by taking two identical cake pans filled with the same amount of water and placing each in the locations you want to compare. After you wait a bit, compare the two water levels by weight or by refilling to a known level (volume). You will now have the hard facts you need regarding which location will serve your purposes "better." Have fun. Good luck.
Full answer by Stan: https://lifehacks.stackexchange.com/a/22717 (CC BY-SA 4.0).
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