Jmho..
The objections against Entangle, please correct me if I am misreading any above post.., are:
A: DC 20 check for a 1st level spell is too high
B: 40' area of effect for a 1st level spell is too high
C: People who misread it to create plant-life and abuse the spell in circumstances where, by RAW, the spell would be of no use. This includes DM's that think that a Light Forest is completely overgrown with Light Underbrush.
and, given that you can recreate most of the spells benefits by ambushing the enemy from behind a low wall while they are tromping through a field of Light Underbrush.... anyway...I digress.
I am highly interested in having a balanced version for my Druids to utilize, and to utilize against them, in my campaign. I even started a thread over in House Rules to discuss possible variations of the spell.
So far the feedback has been, in essence, "Dude, this spell is too powerful.".... Gee. Thats nice.
So, we have two camps here:
Group A: "This spell is too powerful, it needs to be changed"
Group B: This spell is powerful in the right circumstances but works if the DM uses the rules.
Both camps agree, I think, that the spell is poorly worded.
Anyway, its been an interesting discussion. Perhaps some of those Group A folks will wander over to the House Rules and provide some comment on what they think should be changed for the spell to be balanced.