Which Romuvan Religious Aspect is Best?

If anyone has played Lithuania and their unique folk religion Romuva. Which diety would be best to choose? It costs 30 stability to change it, and so far I believe you can only keep 1 religious aspect at a time, given that, which of these seems the most useful to keep if I dont plan on switching?

Creator Deity - Monthly Prosperity - +0.20%

Death Deity - Hostile Attrition - +1.00%

Earth Deity - Maximum RGO Size - +5.00% and Character Life Expectancy - +2

Fertility Deity - Population Growth - +0.04%

Fire Deity - Army Morale - +10.00%

Sky Deity - Stability Investment Cost - -10.00%

Thunder Deity - Reinforcement Speed - +5.00% and Pop Promotion Speed % - +5.00%

War Deity - Discipline - +1.00%

Water Deity - Navy Morale - +10.00%

Wind Deity - Army Movement Speed - +10.00%