I've seen pics of a damaged/disabled Uke M1A1, and in this war disabled tanks become destroyed tanks pretty quickly. Some people have tried to build the M1A1 into some indestructible super tank to make a loss seem like a big deal. We lost better armored M1A1 tanks in Iraq. A couple even attributed to "lucky" RPG-7 shots. No tank is invincible, but the M1A1, even in this outdated, down-armored form, is a tough tank.
I’ve seen several examples (pictures) of Abrahms in Iraq taken out by EFPs. Mainly around the road-wheel hubs. I think the Abrahm’s advantage really is the speed and its ability to shoot on the move very accurately. Bogged down and slow in an urban environment? That’s where you hit by pre-prepared munitions like EFPs and deadly.