"His Chinese is as good as yours."
[noun 1] 和 [noun 2] 一样 [adj.]
[noun 1] 跟 [noun 2] 一样 [adj.]
[noun 1] 像 [noun 2] 一样 [adj.]
[noun 1] is as [adj.] as [noun 2].
像 (xiàng) = to resemble/to be like
一 (yī) = one/single/entire/whole/all
样 (yàng) = manner/pattern/appearance/shape
一样 (yīyàng) = same/like/equal to/the same as
We saw 样 before in:
怎 = why/how
么 = [interrogative particle]
样 = manner/pattern/way/appearance
怎么样 (zěnmeyàng) = how/how about/how was it/how are things
According to this site 比 can't be used with 一样; 比 is used when things are NOT the same.