Someone (may Allāh preserve them) replied:

I voted both winter and summer only because winter “Fasting in the winter is the easy reward.” [Sunan At-Tirmidhī] And the nights are longer to facilitate qiyaam if you’re given tawfeeq. However summer for me is way better, the days are so long, and you can be so productive whilst the sun is still out and you don’t feel tired, I find I seek way more knowledge in summer as the days are longer and more productive There’s sufficient time for a qayloola too unlike winter where you usually just have to end your day early.