I think Plasma TVs consume less electricity even though the power rating is higher i.e 42 inch plasma @300w and LCD @150w. The reason is Plasma TVs power consumption is variable depending on what to display (@300w is when showing all whites) whereas LCD power consumption is constant at the rated power i.e. 150w all the way. But I think power consumption is negligible unless you watch 24/7. And resolution wise, if you watch from 8 feet up for 42incher, the lines are invisible... in fact, the great contrast easily make up for it if you still see the pixels.

On the original question, I prefer plasma TV... but for 32 inch and below, LCD can still cope pretty well. If you have RM1500 to spend, buy a Sharp 32incher and that is enough.