Well, I haven't tried the REGULAR Myoplex, just the Lite and I really like it! I generally buy the Cappuchino Ice and the Neopolitan Variety Pack. From what I've heard, I've surmised that the other Myoplexes (regular, Deluxe, Mass) taste quite different from the Lite. Of course it's all a matter of taste.
OMG the EAS website is like the MOST expensive place you can buy that stuff!!! Other than GNC of course

The best prices I've found are at vitaglo.com - in fact right now they are having a SALE - you can get the 42 serving Variety pack for $39.19 which is less than $1 a serving (and free shipping to boot!). The only thing that GNC is good for is buying single servings of different products to try out.
If you're a woman (hard to tell by your name!) I would recommend the Lite over the regular Myoplex. If you don't care for the taste of Myo Lite, well, there are a lot of other brands on the market to try out. And stay away from those RTD (ready-to-drink) shakes. Bleeeech...