I like to use duckduckgo even though it isn't a very "big" (or popular) search engine and and its algorithm still needs lots of adjustments. Compared to "the big 3" it is entirely non-commercial and it displays 100% organic results.

Would have had 3 if one of my laptops hadn't been stolen last month.
Now I am stuck with my laptop (a 15 inch Acer powered by an i5) and an older dual core desktop PC (which I barely use).