Goran by far.. Roddick was a 2 shot pony who was good on 2 surfaces and never developed his game further as his career went on, he was moody, but not a "headcase" per say, he just wasn't good enough to beat the Federer types.
Roddick was all serve, forehand and chip and charge, rubbish at everything else and even his volley stuff wasn't that spectacular.
Agreed, but Roddick was weaker every year and didn't want to work because he wasn't very good on fast courts either. He said he stopped obsessing about Federina, then he contradicted himself by saying Federina was so friendly & unmatched in the talent department. Roddick pathetically strayed out of the normal mentality for a good athlete. He knew he was too overweight & injury-prone to last many years against better players (many). The only times he felt happy about playing were when he begged for charity money for his foundation & during the easier Davis Cup ties on medium slow hardcourt. Other times, he was verbally abusive and had to be taught a lesson about respecting the superior players who weren't Federer.
Jimmy Connors admitted that Rodd was uncoachable and lost passion for tennis in 2008.
Ivanisevic was not about money greed like Roddick was. He obviously wasn't looking for a rich celebrity teen girl to get to marry him. He still had the guts to hit winners & serve & volley efficiently. He wasn't choking so bad in many matches, unlike Roddick. Goran retired with no anger and no greedy bitter family members who regretted that he verbally abused anyone. No Goran parents/siblings nagged him for money or hid away from the cameras in shame, unlike the Roddicks.