In fact, they are two different schemes for entering law career. CPE is a programme offering for non-law graduate while LLB (I think you mean 'University of London' distance learning program) can be suitable for kinds of person provided you meet their entrance requirement. If you are a graduate, in fact, you can enter the profession by either means. My view is that LLB is a better choice as it is a recognized degree, no matter whether you become a lawyer or not you have obtained a good qualification. In addition, I think the reputation of London University is better than Manchester Metropolitian University.
The information provided by HKU SPACE are appended as follows:
----CPE----
The C.P.E. course, which is intended for graduates from disciplines other than Law, leads to the award of Graduate Diploma in English and Hong Kong Law by Manchester Metropolitian University (MMU).
:: PROGRAMME STRUCTURE
There are 8 subjects, taken over 2 years of part-time study: Public Law; European Union Law; Law of Contract; Law of Tort; Criminal Law; Equity and Trusts; Land Law; and Hong Kong Constitutional Law.
Teaching is provided on campus by MMU staff as well as by local academics and legal practitioners. Assessment is based on coursework and written examinations. There is an 80% attendance requirement.
With regard to P.C.LL. progression from 2008, some additional "conversion" requirements for P.C.LL. will be added. Those intending to take the P.C.LL. course from 2008 should visit the University of Hong Kong Law Faculty website for details of entry requirements:
http://www.hku.hk/pcll/notice/notice.html. Those who complete the MMU LL.B. CPE will have fulfilled most of the additional conversion requirements.
----LLB----
LL.B. degrees are studied by those who hope to become lawyers, by those who feel that a Law qualification would help them in their present profession, and also by those who are simply interested in the courses offered. We provide preparatory courses for the University of London LL.B. subjects including all compulsory subjects.
Intermediate (First Year)
Public Law*
Criminal Law*
Elements of Law of Contract*
Common Law Reasoning and Institutions*
Part 1 (Second Year)
Evidence
Land Law*
Law of Tort*
Law of Trusts*
Part 2 (Third Year) (Subject to demand)
Company Law
Family Law
Jurisprudence and Legal Theory**
Succession
Intellectual Property Law
Commercial Law
EU Law***
Civil and Criminal Procedure
* Compulsory subject
** Compulsory subject for non-graduate entry routes
*** Compulsory subject to obtain a qualifying Law degree
Students recognised by the University of London as graduate entrants take 9 subjects in a minimum of 2 years. Non-graduates take 12 subjects over a minimum of 3 years. Students following the slower routes are advised to study Criminal Law in the second year.
These LL.B. preparation courses are aimed at candidates for the University of London examinations, but can also be taken by other students. Attending these courses is not compulsory, but will greatly improve a candidate's chances of success in the examinations.