Airport transfer to Susukino

I will travel with 4 adults and each of us might have 2 check-in luggages. Japan airlines allowed 2 X 23kg luggage. What is the best mean of airport transfer to Susukino. Does the airport bus allow or have storage space for big luggage? We will be staying at Mercure Sapporo Hotel. Thank you.

Why bus?
Take a airport rapid(JR's train) fastest.
http://www.new-chitose-airport.jp/en/access/jr/timejr/
Susukino is not so far from JR Sapporo stn take a taxi about 10min short ride about 1000Y.
City Subway is a bit cheaper 200Y/oneway x4 = 800Y total
but not recommend up and down(underground stn) again with big luggage.
https://goo.gl/maps/7LECfcfg2iR2

Thank you Hlbic, but lugging big luggages around is convenient if using the airport rapid express?

the limousine bus to susukino is much more convenient. there is storage space for luggage and the size/weight limitation is shown here http://www.chuo-bus.co.jp/highway.en/airport/baggage.php
however it is unclear how many pieces are allowed per person.

If you buy Reserved seat ticket (520Yen,called U-seat), you can use a place to put a big luggage

check this page.
http://www2.jrhokkaido.co.jp/global/english/train/tr020_02.html

Thank you everyone. Any idea how much it will cost to get a private transfer? For 5 person assuming 2 X 23kg luggage for each individual. Thank you again.