Those stats are pretty much meaningless. Even comparing a single stat between players requires specific context. Choosing a dozen stats for 5 players for 4 teams is daft.
For one thing its not always clear whether a high or low stat is even a good thing. For example is it good to have a high or a low 'tackles won' stat? A high stat might mean you're constantly getting into poor positions that require tackles. (remember the memorable line about Maldini's one tackle every other game) Same with blocks. Defenders that are consistently blocking shots might be doing so because everything is last ditch, rarely a sign of a composed defence.
On the other hand the figures might simply be a reflection of how the team plays. Some teams prefer to defend the penalty area, others play a high line. High line formations will need to make more interceptions than a team that plays deep. Teams that sit deep will be blocking more shots. Both are fine, but if you're a team that plays a high line but you're blocking lots of shots, that's a problem because your line apparently isn't working.
The passing is dependent on what's in front of them. Sakho had Gerrard constantly dropping deep to collect the ball, which would give him a simple short forward pass to make every time he got the ball. That alone wouldn't make him a good passer, or inherently a more progressive defender. Compare that with the rolling tumbleweed of our midfield last season and its hardly a surprise that he has better stats than Jones or Evans.
Plus centre backs play in pairs. You really have to compare stats of pairs to make a judgement. Sakho made more passes than Koscielny for instance, but did Sakho and his partner make more than Koscielny and his partner? Maybe the forward passes were distributed more evenly with Arsenal than Liverpool. Or maybe Arsenal's entire back four distribute the ball, while with Liverpool it goes through the one player.
And so on. Stats are only ever illustrative anyway and rely wholly on the context. But at least with attacking players goals and assists are a decent starting point. With defenders its much more complex.