[Help] WHats the best distro for my new gaming comp

[dorito94]

I've already tried Leo4all and iATKOS v7.
Leo4all, loads the HFS+ files than it just restarts tried all the boot options.
IATKOS V7, Gets kernel panics doesn't load any files.
and kalyways 10.5.2 (ages ago)
just gets the infamous, waiting for root device
My computer specs,

Amd phenom II x4 Black edition 965 3.4ghz
Ram: 4gb, 2x 2gb Kingston 1600mhz DDR3
Motherboard: GA-MA770T-UD3P
GPU: Saphire Vapor Radeon HD 5750 1gb of DDR5
DX11 support
HD1: Seagate barracuda, 1TB 7200rpm sata
HD2: Western Digital, 320GB 7200rpm sata
Optical drive: ATAPI IHAS324

Please help me find the best distro?
or get around theses problems with iATKOS or LEO4ALL
Updated:
i burned them both at 1x speed and checksumed them