I usually buy Aldi's own make too, have done for years, although I have to confess, I was in Morrisons and needed powder and I bought the special offer Surf. The offer price was about the same as Aldi, it is 50 washes though, so got a while to go before I go back to Aldi.
The Aldi Colour one is the one I use, keeps colours good, or so it says.