If you want to have fun the gas powered full-auto KSC glocks are very popular. If you want something more reliable the TM AEP's (G18C and M93R) are supposed to be good although they shoot considerably lighter than a gas weapon. I wouldn't even bother looking at the EBB's. They're fun for shooting your younger brother with and getting away with it but that's about it.

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"Two Wongs do not make a Right"
XT Team - Task Force Wong; Tai-i Wong
-TFW Springer Weapon Assault Team (S.W.A.T.)