All of the mentioned teams have points in the bag and have created a quite few chances, i wouldn't say Argentina were lucky they played a team whose players play in all the top leagues in Europe, it was more like Champions League match, i'd say Ivory Coast were unlucky, all in all they won the game. As the finlas progress, defences wil get better. Only teams that have been poor are England and France, but at this stage all that counts is to qualify for the next round, the serious business doesn't start til the knockout stages.
Spain look like well oiled team, a mix of youth and experience.
England's game today may resemble a FA Cup tie, England with Premiership stars, whilst T&T have quite a few players in the Championship and League one.