which is the best smart phone-acer m900 / htc touch pro 2

i was planning to buy a smart phone.now i came out with 2 phones - htc touch pro 2 & acer m 900.
i don't know which is the best of these.
i 've read in some review that acer m900 is too slow bcoz of poor memory.but still its display quality is awesome and it has a finger print reader too.
i don't have much idea about display quality of htc touch pro 2.
can you please suggest me which is the best?

Go for HTC, its fast and reliable.