Seoquake provides over 50 parameters for page strength (including Google PageRank, Alexa Rank and others) on the fly. This data can then be exported as a CSV (Comma Separated Values) file and manipulated in a spreadsheet. This makes it possible to define your own composite page strength using normalization and weightages. If needed, custom parameters can also be created, further adding to the flexibility.
Note: Frequent use of big amount of parameters may lead to the ban from search engines.