I like doing sth better than _（用“do”还是“doing”）sth.I like doing sth better than ___（用“do”还是“doing”）sth.为什么？

I like doing sth better than _（用“do”还是“doing”）sth.I like doing sth better than ___（用“do”还是“doing”）sth.为什么？
I like doing sth better than _（用“do”还是“doing”）sth.
I like doing sth better than ___（用“do”还是“doing”）sth.
为什么？

I like doing sth better than _（用“do”还是“doing”）sth.I like doing sth better than ___（用“do”还是“doing”）sth.为什么？
DOING,因为两者相比较,后面的状态应该和前面是一样的

doing.
保证前后一致。其实和And的情况一样，两个动作要用同一时态。
如果此处是do，OK，就没问题了。
但前提是前面是like to do.