Hi there
I've tried lots of tyres and tyres work differently on different cars.
I personally don't like Eagle F1's for me sidewalls are too soft even in extra load version, they are squiggy and lack feedback.
On a car like the Astra VXR is you want the dry performance of the Yoko Parada or better with excellent feedback you need a tyre with a decent stiff sidewall or one designed with outright performance/feedback in mind.
The Goodyear Eagle F1, Contisport 3 are superbly grippy tyres, but they are soft sidewalls as they are also designed for comfort too and in some cases improve MPG. In the wet you will struggle to beat the CS3 and eagle F1, but they sacrifice feel and that hardcore edge.
If you want that absolute dry edge with awsome feedback then Yokohama AD08, Michelin CUP and Toyo R888 are the best tyres by far, however the latter two are poor in the wet and lethal in the cold. The AD08 is good in the wet but only one warm days but I'd say better than the Parada as long as its warm.
I'd say if you want to keep the good feel, excellent turn in given by a stiff sidewall tyre but want something good all round then look at Bridgestone RE050A, Michelin Pilot Sport 2 and a new but hard to get hold of tyre thats doing well is the Hankook V12 EVO tyre which also at present is quite cheap, how long for who knows.
I'd always take the tyre that gives best feel and if need be in heavy rain just slow down.
