Share builder

I have deceided that as I only have small amounts to invest gradually over 3 years that an option would be the Halifax jobbie.

So hence I need to choose 5-10 ftse 100 companies that will perform consistently over this time maybe 5 years. Yes they may go down but some must be better choices than others.

So far I like Astra Zen
United utilities and maybe voda and tesco. 

Any thoughts suggestions???