While I'm convinced that there are as many bad hymns as there are bad worship songs, if not more, there are a number of excellent hymns that stand heads and tails above even the best worship songs. Their superior musicality, emotive power, and doctrinal heft convince me of this. Indeed, there are hymns that contain doctrinal insight to rival that of the best theology ever produced. The fact that they are falling out of the church's collective memory is something to be deeply regretted as it is one more facet of what at times seems to be a concerted effort to fail catechetically.
Here is the first one: Martin Luther's "A Mighty Fortress Is Our God"
A mighty fortress is our God, a bulwark never failing;
Our helper He, amid the flood of mortal ills prevailing:
For still our ancient foe doth seek to work us woe;
His craft and power are great, and, armed with cruel hate,
On earth is not his equal.
Did we in our own strength confide, our striving would be losing;
Were not the right Man on our side, the Man of God’s own choosing:
Dost ask who that may be? Christ Jesus, it is He;
Lord Sabaoth, His Name, from age to age the same,
And He must win the battle.
And though this world, with devils filled, should threaten to undo us,
We will not fear, for God hath willed His truth to triumph through us:
The Prince of Darkness grim, we tremble not for him;
His rage we can endure, for lo, his doom is sure,
One little word shall fell him.
That word above all earthly powers, no thanks to them, abideth;
The Spirit and the gifts are ours through Him Who with us sideth:
Let goods and kindred go, this mortal life also;
The body they may kill: God’s truth abideth still,
His kingdom is forever.