What are the area's of law?

Criminal, civil, family, real estate, corporate, international. You can make money in any field if you are talented.

Here's the list (big breath...)

Administrative law

Comparative law

Conflict of laws

Constitutional law

Contract

Criminal law

Equity

Private law

Property law

Public international law

Public law

Supranational law

Tort

Trust law

Admiralty law

Aviation law

Banking law

Bankruptcy

Commercial law

Competition law

Consumer protection

Corporate law

Environmental law

Evidence

Family law

Human rights

Immigration law

Intellectual property

International criminal law

Labour law

Media law

Military law

Monopoly law

Procedure (Civil / Criminal)

Product liability

Restitution

Space law

Tax law

Unjust enrichment

Wills

Unfortunately i have no idea which one pays the most.

Same list as the one above off Wikipedia.

In terms of earning, it's a fallacy that you can earn just as much in whichever field as long as you're good. Revenue Law and Company Law pay millions once you're top of your game. Companies are the ones with all the money after all and they'd rather avoid tax and big lawsuits than pay out all the time. Makes sense really...

Yahoo answers is a big site. Try telling us what COUNTRY you are talking about. Different countries have different laws and the laws are categorized differently. Usually there is criminal and private law which can be called other things. There is often different jurisdictions too such as provincial, federal, or state...