Lets look at some facts or evidences:
Plane was at IGARI when it lost contact
Oil rig worker saw explosion or sort off
Other 8 people heard of explosion
Oil slick found in east (But Malaysia denied that its Jet fuel)
US7 was one of the first to reach the area
Statements coming from White-house (US) and PM (Malaysia)
Selective leaks from Pentagon / White House
Chinese satellite picked-up something (one sortie by Malaysia plane - and they rule that out)
SAR stopped on east side of Malaysia
Vietnam accuses Malaysia of not sharing information
Only Malaysian primary radar has picked up the plane. Hard to believe that India, Indonesia and other neighboring countries failed to detect. Indian radars are quite capable and they deny any intrusion (statements coming from low level officers, not PM or chief of military)
No debris in Bay of Bengal or Indian ocean.
All information or data coming from Malaysia or US. So far Malaysia has been very inconsistent in revealing/sharing information. Vietnam and China says and proposes something, Malaysia quick to issue a denial to that.
Deduction
Malaysia is hiding something of great magnitude
US is party and supplementing to whatever Malaysia is saying or hiding
Something big has happened that Malaysia is trying to cover-up
All data/information related to satellite etc is false and is being deliberately fed as afterthought
Possibility
MH370 never flew west
It had a failure with its transponder (at a wrong time)
Crew trying to navigate
US7 fleet present in that area, picked up the aircraft on their radar. Edgy and trigger happy action by them or someone.
Deliberate action to cover-up and misguide everyone to look at west. While the clean-up is being done on east side.
There is certainly more to whatever is being said by Malaysia and US. It can be concluded that plane never flew west.