Dsus2, i dont know why, it's a nice enough chord on it's own, but i like to use a lot cos if music was food it's would be bread, it goes with almost everything.
i use these too, i dont know what they're called (my music thoery is dire)

E |-----5--0---0----0|
B |--3--3--0---10---0|
G |--0--2--9---9----6|
D |--4--0--11--0----7
A |--0----------------0|
E |------------------|