Frankly speaking, I'd rate New Shaolin Temple as the least best among Wu Jing's kung fu series (that is wuxia and anything else not included), since despite the crew and cast, the production somehow didn't manage to capture the flavour of the original, and the martial arts sequences are mostly rather banal, save for the finale and a rare few in between. And the story felt a bit forced, "over-stretched", "over-fed" - trying too hard to extend, extrapolate and stuff too much details into something that's only 1 1/2 hr long.
Master of Tai Chi is definitely Wu Jing's best. Very creative and polished martial arts sequences that'll take your breath away - I dare say better than Tai Chi Master movie. And since you understand Chinese, you'll be able to appreciate the plot (simple but well-written) and most importantly, it's the intricacies of the martial arts philosophy so brilliantly incorporated here that make Master of Tai Chi such a classic. While this isn't a stretch on Wu Jing's acting, he comes across as very natural and unaffected in his portrayal here, an all-around likeable guy.
Where martial arts sequences are concerned, Wu Jing's Shaolin King of Martial Arts, 36th Chamber of Southern Shaolin, Southern Shaolin, and Water Margin: The Aftermath are very good too, except they won't topple Master of Tai Chi.
For something a little wacky, try Flea on Drum: Shi Qian where Wu Jing wreaks havoc on everyone.
And there's another kungfu series I'd highly recommend. Not Wu Jing's, but it's just plain awesome - Legend of Shaolin Kungfu.