Well, out of the two that you mentioned, THUNDEROUS MUZIK is the better one...It's not very long (about 40 minutes), but Telly Mac and Devo bring their usual lyrical heat, and the production (from Mal and Sean T.) is on point. If you like The Gamblaz, you should be able to get into THUNDEROUS MUZIK. Devo and Telly tend to be consistent w/ their shit, IMHO.
As for ILLEGAL GAME... it's basically solid, and I had no problem w/ the lyrics--JT and Mall can still spit--but like SF Slimm said, some of the production and/or the hooks (depending on your POV) may take some getting used to...You might want to listen to ILLEGAL GAME on Northern-Ridaz.com first if you're not sure and then decide for yourself, because opinions seem to vary widely on that one. Just my opinion, though.
R.I.P Mac Dre
PEACE!