Methods for Evaluating

State an overall claim about your subject.  In this essay, you should determine which of the items you are comparing is “better” or “preferable” to the other.  This overall claim is your thesis statement.  Without it, your essay does not have a purpose.
Describing the product or performance being evaluated.  Readers need basic information—who, what, when, and where—to form a clear judgment.  You will need to choose items that you can observe more than once so you can get the needed “showing” details.
Clarifying the criteria for your evaluation.  A criterion is a standard of judgment that most people interested in your subject agree is important and serves as a yardstick against which you measure your subject.  The criterions are the points of comparison that are discussed between the two products/services. 
Stating a judgment for each criterion.  The overall claim is based on your judgment of each separate criterion.  Include both positive and negative judgments.  This is a value based judgment.  When considering each specific criterion, is this element of the product/service good or bad?
Supporting each judgment with evidence.  Support (or evidence) for each judgment might include description, examples, illustrations, testimony (interview), etc.  This evidence will support your assertion whether the specific criteria is good or bad.
Balancing your evaluation with both positive and negative judgments about your subject.  The judgments for each of your products/services should be both positive and negative.  An evaluation for a product/service that is all positive merely results in an “advertisement,” while evaluations that are entirely negative may seem too harsh or mean-spirited (and may seem as if you have a personal vendetta against the company owner/artist, etc.). 


ORGANZING YOUR ESSAY (COMPARISON/CONTRAST)

When you use comparison/contrast in an essay, your opinion about the two elements in question becomes your thesis statement; the body of the paper then show why you arrived at that opinion.
Developing Your Essay

Two principal patterns of organization
Block
Point by Point

Pattern One:  Block (One-Side-At-A-Time) Method

Thesis:  Wendy’s is a better restaurant then McDonald’s because of it’s superior food, service, and atmosphere.

A.Wendy’s
1.Food
2.Service
3.Atmosphere
B.McDonald’s
1.Food
2.Service
3.Atmosphere
If you choose the block pattern, you should discuss the three points—food, service, atmosphere—in the same order for each subject.  In addition, you must include in your discussion of subject “B” specific references to the points you made earlier about subject “A.”

Pattern Two:  Point-By-Point

Thesis:  Wendy’s is a better restaurant then McDonald’s because of it’s superior food, service, and atmosphere.

A.Food (Point 1)
1.Wendy’s
2.McDonalds

B.Service (Point 2)
1.Wendy’s
2.McDonalds

C.Atmosphere (Point 3)
1.Wendy’s
2.McDonalds

Conclusion

If you choose this pattern of organization, you must make a smooth transition from subject “A” to subject “B” in each discussion to a choppy seesaw effect.  Be consistent:  present the same subject first in each discussion of a major point.

Problems to avoid
1)The “so-what” thesis
Tell your readers your point and then use a comparison or contrast to support the idea; don’t just compare or contrast items in a vacuum.  Ask yourself, “What is the significant point I want my readers to learn or understand from reading this comparison/contrast essay? Why do they need to know this?  In this essay, you want your readers to understand which product/service is better and why.
2)Inadequate description. 
If you do not describe your product/service distinctly with “showing” details and description, you reader won’t understand your preference.
3)Avoid a choppy essay.
Use transitional phrases to avoid a “ping-pong effect.”  Avoid the repetition of words (especially the two items being compared).  Remember that you want your essay to avoid sounding like “Chop Sticks” on the piano.  Use pronouns, synonyms, and the transitional words and phrases below to create the proper flow of words/ideas.

ComparisonContrast
also however
similarly on the contrary
too   on the other hand
both        in contrast
like          although
not only . . . but also unlike
have in commonthough
share the same   instead of
in the same manner  but