The Galaxy S3 is supposed to be coming pretty soon with a quad core exynos processor. If you like Samsung, you might want to wait for that phone. If you're a fan of HTC, their HTC One X is going to come soon as well with a NVidia Tegra 3 quad core processor.
The S3 is supposedly going to be made of ceramic material (not te ones that you use for fancy cups and plates and pots) instea of plastic.