iRule vs. Local Traffic Policy vs. Rewrite Profile

This is the iRule I created. Do you recommend using IF or CASE statements, or does it not matter?

when HTTP_REQUEST { 
    if { [HTTP::uri] starts_with "/n1" } { 
        HTTP::path "/myApp" 
        pool n1-app.example.com_443_pool
    } elseif { [HTTP::uri] starts_with "/n2" } { 
        HTTP::path "/myApp" 
        pool n2-app.example.com_443_pool
    } elseif { [HTTP::uri] starts_with "/n3" } { 
        HTTP::path "/myApp" 
        pool n3-app.example.com_443_pool
    } elseif { [HTTP::uri] starts_with "/n4" } { 
        HTTP::path "/myApp" 
        pool n4-app.example.com_443_pool
    } elseif { [HTTP::uri] starts_with "/n5" } { 
        HTTP::path "/myApp" 
        pool n5-app.example.com_443_pool
    } elseif { [HTTP::uri] starts_with "/n6" } { 
        HTTP::path "/myApp" 
        pool n6-app.example.com_443_pool
    } else {
        pool app.example.com_443_pool
    }
}