Quoted from Hawkeyepin:

I like them all...Including data East, Sega and gottlieb

Quoted from Luppin:

The top100 ranking is totally fake and manipulated. Firstly because its simply about people rating high their own machines. The more they paid, the more they lie. Secondly, instead of looking to the ranking position, check the scores. It goes from 8.8 to 6.8 from #1 to #300. From #1 to #50 there is a spread of less than 1 point!! (0.9). From #51 to #100 there is a gap of 0.3 point!! And even smaller difference from #100 to #300. So it means that all owners rate very high their own machines. Also, there are comments and pure votes. Votes are hidden, but are the majority. Manipulation (hopefully not from the insiders, just a joke of course) could be easily applied, in order to create a kind of believable and presentable ranking.
Considering that theme and feel plays a big role in the subjective appreciation of a machine, I do not think a random 8.8 machine is necessarily better than a 7.8 machine. The difference of just 1 point is not much at all. But its the difference between #1 (MM) and #67 (Batman).