Purple Haze,
Don't you just love these guys too ? Was once told by an instructor that the only silly questions, are the ones you do not dare to ask.
Anyway, both a-busses and lazy-b's share more or less similar engine's. There are of course differences from the, for instance, RR Trent mounted on an A330 vs. the one on a B777. But all of the big 3 engine builders (GE / PW / RR) supplies both manufacturers.
However, the design philosophys of Boeing & Airbus are quite different, views on who's the better are abundant on this forum. All Airbuses except the 300 & 310 are fly-by-wire controlled, and the control column has been replaced by a joystick.
All Boeings except the 777 are all controlled by mechanical links.
Fact of the matter is that both manufactureres has succeded in producing a family of aircraft, which generally deliveres their payloads safely and economically from point a to point b, at more or less the same speed.