Pre-emphasis is prefered over equalization if the crosstalk is not a factor in the transmission line.
Otherwise pre-emphasis will make crosstalk more
pronounced by amplifying the tranmit signals;
Equalizer is prefered if S/N is not the factor in the
tranmission line.Otherwise the noise will be amplified
by the equalizer.
It seems equalizer is more used for it is also
adaptive,and need less power.
you can search related papers on broadband limiting amplifiers
1 active inductor peaking
2 capacitive degeneration
3 cherry-hooper amplifier
4 ft doublers
the first three methods are commonly used
Another good paper is "A 10 Gb/s receiver with equalizer and on-chip ISI monitor in 0.11 um CMOS" by Yasumoto Tomia, Masaya Kibune, Junji Ogawa, William W.Walker, Hirotaka Tamura and Tadahiro Kuroda. 2004 Symposim On VLSI Digest of Technical Papers.
These two papers show the state of art equalizers. Also we can find some classic paper on equalization in their reference list.
Btw, if somebody can find the paper: "The design of Wide-Band Transistor Feedback Amplifier" by E.M.Cherry and D.E.Hooper, Inst.Elec.Eng.Proc, Vol.110, No.2, pp.375-389, Feb.1963. Please share a copy to me, with greatly thanks.