why do gms like the English attack?

sharp, aggresive and exciting. As an observer, I love it when things go that direction!

because maybe non-GM's don't like the English Attack?  :-)

If I was a German GM, I was not confortable with English Attack, specially if my Grandfather fought in the Second World War.

After the moves 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 we have reached the initial position of the English Attack.  The  reason that  GMs like the  English Attack is because it gives White about 6 different plans of attack. 

What is not well known  except by  other  GMs is that Black can choose to play the 5...a6 Sicilian Najdorf Scheveningen style.  He does this by responding to 6.Be3 with 6...e6.  6...e6 reduces considerably the number of plans  of  attack available to white.

stockfish says black is better