Out of all the different types of roofing materials, asphalt is most common.
This is because it strikes a nice balance between durability and cost. Asphalt shingles are also very easy to install. This will lower the cost of installation. Removing asphalt shingles is also a fairly simple option, and in some cases, new shingles can be installed on top of old ones, further simplifying the process.
If aesthetics are a major concern for you, asphalt provides many options in color that can match your siding very well.
There are some drawbacks to asphalt roofing, one of them being life-span. Depending on the quality, you can expect them to last 20 years, so this might be a consideration when you make a decision on a roof replacement.
Something to keep in mind is to not allow moss to grow on the roof, as this can make the shingles break down prematurely due to collected moisture under the moss.