A push-pull tube design and Single-ended class A designs

There is no such thing as the best in this hobby. It all comes down to personal preference. Based on my experience. SET and single driver speakers excels in jazz and classical music but sucks in other genre. I don't listen to classical so my choice is Push-Pull that gives me the slam I like specially with rock and r&b and still able to enjoy the sweetness of jazz. Hope this helps.

Thank you Sir.  Now I know which to get.  

Can you guys give me some sample of Speakers that good for Single-Ended Class A amp?

eddy1 never buy an amp first and then try to find a speaker to fit it. Go to Axpona or Colorado show and see what speaker you love then match the amp push pull or single ended to go with it.

Hi,
The suggestion of going to a show is a good idea,  you need the broad range of exposure to get an example of what appeals to your ears. Try to seek out higher efficiency speakers  (say 92db and higher ) and higher load impedance (say 6 ohms or above). Avoid speakers that dip to low impedances (especially in the bass region). You can build a system beginning with the speaker  (most common approach )or begin with an amplifier.  I've done it both ways successfully. Either way one is going to have to match the other component. The key to satisfying SET amplifier use is getting a speaker with a compatible load to drive. Take your time, read and go out and listen. Key points for good SET selection are high quality output transformers and strong power supply, these are essential factors. Take away point, steer clear of inefficient and challenging speaker loads. SET will sound exceptionally good with multiple music genres with the right speakers. That's been my experience the past 6 years. 
Charles,