Hi Basil,
They are a bit more expensive, but the main differences being
1) I-Web is UK Located (only recently though) and im sure any client that was in our migrations will agree, having the servers located in the UK seems to have speeded up the site load time tremendously!
2) hostandfly.com appear to be resellers (despite what their own site says, they appear to not own their equipment etc.), and have only been going since November 05 (again, concerning there site, under the "Our Network" link, states otherwise).... whilst these arent serious issues i guess, especially for the price... it would set alarm bells ringing for me... too much contradicting information, if you know what i mean... (talking about there own DC, on a reseller plan, talking about office being in tampa florida, domain reg'd to UK, talking about running for 4 years, company been running since november) Not bashing them, just commenting..... Just be weary, but for the price.... i guess we cant always have paradise....
Also, if you right click on some of there images, and click properties.. you can see the original home of some of their images... (i.e. they are hotlinking, didnt even bother taking a copy... just using someone elses bandwidth) and others are hosted at imageshack.... now why would a reputable host do this?
Site5 and hostgator are 2 of the big boys in the hosting industry though... alot of respect to them - Especially hostgator... i talk to Dave over there on a weekly basis.... i believe he has even done some work on some of I-Web's boxes.... theyre a good company...
(just thought i'd put my own comments into the box
)