you dont seem to get what i am saying. gaara and naruto are to different host and what not. in shippuden when gaara became kazekage and fought diedara he had way more chrakra his control over the chakra was supperb, and so on. i say with shikkaku because he would have more chakra reserves and back up chakra at his disposal. and if something happens he can sleep and let the shikkaku unleashed and i would imagine the shikkaku in the desert equals game over since he can become the desert itself.
gaara will create a sensor sand storm, and that will make any mangekyo tech besides susanoo useless (tsukiome and amertatsu). then when fighting him he will constantly grab you with the sand on the ground so staying still is futile
fact! 1. while hes moving he can attak and defend
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and also rain down on you with sand
2.if you stay still even for a second u are as good as dead
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3. if he can creat a sand tsunami in the forest with ease, i imagine in the desert it would be easier and he could also make a constant sand storm
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4. quik sand that sucks you down fast and
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and even with susannoo u want be able to move
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5.
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do u see how much sand he is using???? and has full control over it all
6. u see how high up he is?
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and has the perfect defence against all atks in his sphere.
7.
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the sand in the desert is easy to control, the sand in his gorgde is the spl fast sand infused with chakra and fast as hell!
8. protected the village with ease and a bunch of sand
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. and keep in mind he was able to still go.
now imagin all of that happining with a constant sand storm so ur opponent cannot see anything. and gaara in his sand sphere perfect defence. and this isnt everything gaara in the desert can do. use your imagination and think about it. u are underestimating gaara, i say with shikkaku because of the extra chakra and he has the ability to surpress it/or atleast have it undercontrol so it cannot come out, and just incase something does happen he could use the insomnia jutsu to let the shikkaku have fun in the desert. he is a monster in the desert! wheather you like it or not. u underestimate him...U_U