The 2007 team gave our worst showing, but the 2015 team was weaker.
In 2007 we had a very strong batting line-up, which had done well in England, India, Australia, and West Indies in the preceding 2 years. Younis might might have had a below par odi career, but he was a gun odi player between 2006 and 2008 and the main architect of our successful run chases. Yousuf was very good, Inzi was old but still a clutch player, and Malik was going through the best period of his career often doing remarkably well at no. 3. Nazir was exactly the kind of player we needed at the top of the order, he was much better than someone like Sharjeel. Kamran was also going through the best period of his career and was considered to be one of the best wicketkeeper batsmen in the world, he was no Gilchrist of course. In Woolmer we had one of the most formidable coaches in world cricket.
Our bowling was over-reliant on Akhtar and Asif, who cost us dearly. The likes of Rao Iftikhar and Sexy Rana, with his hips sticking out as he ran into bowl, were just not good enough. They were run containers, not wicket-takers, but as India showed in Loi's back then, as long as the bowlers didn't concede too many and the batting was good enough you could succeed. Ultimately we failed terribly.
Before the 2015 World Cup, Team Misbah won the 2012 Asia Cup, won in India, won in South Africa, and reached the 2014 Asia Cup final. We were a terrible batting team, incapable of scoring. But, we had a ridiculously strong bowling line-up with Hafeez and Ajmal's suspect actions. No team could get away from us with a score too big. Losing them before the World Cup rendered our attack impotent.
Our pacers bowled bravely and single-handedly helped us reach the quarters, with a vintage bowling performance against South Africa, and made a match of the quarter itself. But, our batting was so abysmal it cannot be put into words. Misbah played at a very slow rate, but given the lack of batting ability around him there wasn't much he could do. Reaching the quarters was admirable, but this was a team incapable of even reaching 250, in a world cup with multiple 400+ scores, apart from the game against the mighty UAE. The 2015 team did not even belong in the world cup, specifically the batsmen.