Indeed, a SE to the max. To be honest I can not understand why anyone who wants to run a SE or even a hybrid (2 scientist specialist and cottages) would not make a run at the pyramids. In this game they are essential and paying off dividends. Police state has been valuable also.
I don't want to derail your thread with yet another discussion of just what a SE is or whether the Pyramids are an essential part. I have already said everything I think several times already on these boards so allow me to reference myself in an earlier thread
As many have already said, I consider The Pyramids to be unecessary for a SE. In fact on many maps it is easy to argue that HR is superior to Representation anyway, providing more happiness and giving much better flexibilty in controlling it. It depends on your gameplan but SE is particularly suited to warfare. There are too few specialists to make early use of Representation worthwhile in the same way it is in the middle and late game. That means it is feasible to research Constitution normally (using some lightbulbs towards Liberalism and taking Nationalism) in a SE and out research a slower CE based economy. That makes The Pyramids an expensive (500 hammer) distraction from REXing or an Axe rush.
In that post I also do an analysis of the value of GPPs versus the extra beakers from Representation (it is rather long so go there to read it if you like). That analysis shows in the early game the GPPs are several times more valuable (10.87 beakers per food invested versus 1.87 for Rep). This explains why REXing and building several extra cities early on is better than building the Pyramids and running Representation in the original cities. It concludes "running a lot of scientists each giving 3.75 beakers and 3 GPPs is better than running a few (or none) giving 7.5 beakers and 3 GPPs when each GPP is worth 6 beakers." A Philosophical leader would get an even greater benefit from the GPPs versus Representation and so should be even less inclined to build the Pyramids.
However I do agree that early access to Police State could be very useful, although I usually find a combination of extra troops under HR and fierce use of the whip to keep city sizes small during war deal with early forms of WW. In later ages WW scales more strongly (with the age) and armies get bigger, then Police State becomes essential and hence Fascism needs to be researched before the really heavy duty warring.