Eric Giunta, a law student in Florida takes a look at some reasons why Pope John Paul II ought not be beatified with subsequent canonization in mind. For the record, I think Eric Giunta is off his rocker in his assessment of John Paul's holiness and heroic virtue, human and papal. He lumps too many things together and he lacks certain theological nuance in doctrine and teaching and when considering matters of ecclesial governance. Additionally, I think he's trying to hammer a wedge between the papacies of John Paul and that of Benedict which is unfortunate and wrongheaded. Giunta politicizes the Church which is common enough in today's era, that is, he speaks of the Church more as an institution and does not consider that the Church is first and foremost a sacrament founded by Christ. Miss this point you miss the essential understanding of Christianity.
While I support the proposal of declaring John Paul a saint, I think the Church ought to wait and have further study on his person and work. Pope John Paul insisted on the five year waiting period before the introduction of a cause (except for Mother Teresa) to let among other things, the emotions to settle and give reason a chance to work; I think the rule is a good one even for high profile people like Teresa and John Paul. There is benefit in letting the process mature. So, dissenting opinions provoke a critical reassessment and perhaps new thinking so I recommend reading what Eric Giunta says...