It is not an eq thing really. But I agree you can warm it up some. Agreed the chain in analog is noisy .A lot depends on gear and sampling rates. Analog is warmer because you are hearing the whole wave, a continuous signal. Not dealing with bits. In digital , the source signal is sampled, so in essence if the interval is set properly it may only sample the signal every 1000th of a second (for arguments sake). So every 1000th of a second, the input signal is sampled and when this same signal is output after processing it has to transformed back to analog. In this process, it mathematically interpolates where the signal should be between the samples. In essence you are losing information but if the sampling frequency is high enough you shouldn't be able to tell the difference according to the MATH. But the reality is that we can tell the difference.

I don't think we will ever go back to tape. Its just to easy to use a a DAW. Plus hardware is getting better all the time.