Left handed or right handed bowler..?  

Hi siliguri ..I personally think that hand they use does not matter at all . It really depends on how well u bowl . But seeing the statistics , it suggests that right hand spinners dominate a lot compared to left hand spinners . Also in fast bowling ,right handed bowlers dominate (not that much but slightly) . But this is just statistics . There are good spinners in left hand like Vettori and good fast bowlers Like Akram . I think the reason why right hand bowlers dominate is that there only few left hand bowlers . But, again I think that it does not matter that from which hand u bowl . It matters that how well you bowl . Anyways..happy mylotting and have a nice day !

I like right handers mostly..But in fact left handers are more sharp and they do much harm to batsmen. But in case of me i like sreesanth, harbajan, kumble etc who are using right hand..

I don't think being a left arm or right arm makes much difference in cricket. It's all about how you bowl and the talent the bowler has. Left arm around the wicket with an in swinging delivery for a right batsman can give a lil trouble for the batsman. But not for all. Similarly, I've seen Shoiab Akthar coming around the wicket for a left hand batsman delivery a yorker with 150+ KM/hour delivery which has got some batsman bowled. See the similarity between left hand and right hand?
I think it definitely doesn't matter which arm the bowler uses to bowl as long as he bowls line and length.

Well, being left or right doesnot seems any big difference. But i like right hand bowlers and their style, so as the left hand..both have their own way of uniqueness.

i believe that left handded bowler for the right handed batsman will be bad challenge

It is easier for a right hand bats man to hit a ball from a left armer and for the left arm batsman it is the vice versa. So you should have both bowlers to have a good bowling attack.