you need to temper the advice on the web with what / how you will use the car for. I have just fitted conti sport 3's and they are (on just about all the magazine tests) the best in the wet and today I did 250 miles in monsoon conditions and they are trully awesome, they will not be good in the dry as say the michelin's or if you really want great dry traction go Toyo 888's I went sport 3's as it is Oct 1st and we have at least 6 months of serious wet ahead of us, if it was 1st March I would have made a different choice, plus I do 20k miles a year of work related driving, for ultimate driving like a nutter grip my other track focussed car has Pirelli Corsa's on it.
So ask yourself what do I really want from my tyres = ultimate wear, ultimate quiet, best wet handling, best dry handling, when will I use the car the most, how will I use it and when, this will point in the direction of which of the quality tyres you should go for, for me it is ultimate wet performance hence sport 3's if it was ultimate dry or ultimate ear I would have def gone Michelin.
BTW no such thing as the "best" all round tyre, they all lean one way or another - one more optimised dry, one better wet, one on wear, one on noise etc
HTH's
John