well, let's see, theres the sig p225,p226,p228,p228, all can be found used at a bargain.
any of the 9mm glocks would serve you well
the m&p 9, the xd-9, the fnp9, the ruger series is a good buy also.
then there are the walthers, pricey but can be found under the cap you set, used hk's are out there as well, a usp or similar would be a good buy.
any of these will be more than adequate for your basic pistol needs, there is no best one, just ones that fit right in your hand.