Laundry powder or gel: which is better

Laundry detergent comes in handy

for getting out difficult or stale stains and heavy soiling;
for washing at high temperatures (from 60 degrees Celsius);
for people who are not prone to allergies.
Laundry gel is suitable:

for daily washing of clothes with light soiling;
for washing delicate fabrics such as wool, silk and lace;
for cleaning dark and coloured items to preserve colour and avoid streaks;
for people prone to allergies.