Does the Complete University guide take into account general studies and critical thinking for its average ucas entry points?
I would assume yes given that it's average entry points and not average offer points. However, the majority of universities will not consider them/will have offers specifically excluding them, so in theory they could push up average entry points, as the offer-holder will have an extra a-level that has a value in tariff points but is excluded from offers.
In most cases, no. But it's probably best to check with individual universities.
While this might be true for university entry requirements - the stats that feed through to league tables do not differentiate between subjects at A/AS level.