Which is better

[Machdiesel]

I am currently oon the 1 on 1 off split and absolutly love it, but with the summer comming, and all my boys comming home i doubt ill be able to get to the gym on saterdays on a reg basis. I am putting together a split for mon-fri and wondering more of the science behind it then personal pref. Wondering which of these splits gives my muscles trained the proper rest before working them again, ne help would be a tremendous help, heres what im debating

Split 1...................................split 2
mon-Chest............................Mon- Chest(national chest day)
Tusday - legs........................tuesday-legs
Wed-off...............................wed-off
Thur-Shoulders-tris.................thurs-back-bis
fri- Back-Bis............................ fri-shoulder tris

Split 3 .................................... Split 4
mon-chest................................Mon-Chest
tuesday-legs/Bi's.......................tue- legs,bis
Wed-off................................... off
Thurs- Shoulders,tris..................thurs back
Fri- back.................................. fri- shoulder tri

[ACAZORES]

all sound ok, alternate each split every week

[SayHelotomylilFriend]

where are traps ? abs ? calves ? forearms ?

[Machdiesel]

forearms with bis, calves with legs, traps with back, u think its better with ym Bis with back or with my legs to hit them twice a week(with my back then again on my Bi day

[Machdiesel]

ne one see one stand stand out giving me a beter workout/ rest period

[BlueAndromeda73]

Personally I like the split 1 & 2 the best, some of the combined lifting (i.e. back and bi's) that you have in there works good IMO.

[TimeToGetBig27]

Missing a few muscle groups there like the others have said but personally i don't like this shoulder and bicept thing, or tricept. Personally i like to do my shoulder's with my lats, but would say routine 2.